36128986881 has 32 divisors (see below), whose sum is σ = 52489866240. Its totient is φ = 21971805504.

The previous prime is 36128986879. The next prime is 36128986919. The reversal of 36128986881 is 18868982163.

It is not a de Polignac number, because 36128986881 - 2¹ = 36128986879 is a prime.

It is a super-2 number, since 2×36128986881² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (36128986781) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1738156 + ... + 1758818.

It is an arithmetic number, because the mean of its divisors is an integer number (1640308320).

Almost surely, 2^36128986881 is an apocalyptic number.

It is an amenable number.

36128986881 is a deficient number, since it is larger than the sum of its proper divisors (16360879359).

36128986881 is a wasteful number, since it uses less digits than its factorization.

36128986881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21205.

The product of its digits is 7962624, while the sum is 60.

The spelling of 36128986881 in words is "thirty-six billion, one hundred twenty-eight million, nine hundred eighty-six thousand, eight hundred eighty-one".