36591719693881 has 27 divisors (see below), whose sum is σ = 40742070220719. Its totient is φ = 32839402939200.

The previous prime is 36591719693849. The next prime is 36591719693989. The reversal of 36591719693881 is 18839691719563.

The square root of 36591719693881 is 6049109.

It is a perfect power (a square), and thus also a powerful number.

36591719693881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 28664341580281 + 7927378113600 = 5353909^2 + 2815560^2 .

It is not a de Polignac number, because 36591719693881 - 2⁵ = 36591719693849 is a prime.

It is a super-2 number, since 2×36591719693881² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 36591719693798 and 36591719693807.

It is not an unprimeable number, because it can be changed into a prime (36591719693821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 5256672241 + ... + 5256679201.

Almost surely, 2^{36591719693881} is an apocalyptic number.

36591719693881 is the 6049109-th square number.

36591719693881 is the 3024555-th centered octagonal number.

It is an amenable number.

36591719693881 is a deficient number, since it is larger than the sum of its proper divisors (4150350526838).

36591719693881 is an frugal number, since it uses more digits than its factorization.

36591719693881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14102 (or 7051 counting only the distinct ones).

The product of its digits is 529079040, while the sum is 76.

The spelling of 36591719693881 in words is "thirty-six trillion, five hundred ninety-one billion, seven hundred nineteen million, six hundred ninety-three thousand, eight hundred eighty-one".