36338991808 has 28 divisors (see below), whose sum is σ = 82411643152. Its totient is φ = 15573853440.

The previous prime is 36338991791. The next prime is 36338991809. The reversal of 36338991808 is 80819983363.

It is a tau number, because it is divible by the number of its divisors (28).

It is a super-2 number, since 2×36338991808² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (36338991809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40556463 + ... + 40557358.

Almost surely, 2^36338991808 is an apocalyptic number.

It is an amenable number.

36338991808 is an abundant number, since it is smaller than the sum of its proper divisors (46072651344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

36338991808 is an equidigital number, since it uses as much as digits as its factorization.

36338991808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81113840 (or 81113830 counting only the distinct ones).

The product of its (nonzero) digits is 6718464, while the sum is 58.

The spelling of 36338991808 in words is "thirty-six billion, three hundred thirty-eight million, nine hundred ninety-one thousand, eight hundred eight".