36981439824 has 80 divisors (see below), whose sum is σ = 113930422272. Its totient is φ = 10106726784.

The previous prime is 36981439793. The next prime is 36981439841. The reversal of 36981439824 is 42893418963.

It is a super-2 number, since 2×36981439824² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2384964 + ... + 2400419.

Almost surely, 2^36981439824 is an apocalyptic number.

It is an amenable number.

36981439824 is an abundant number, since it is smaller than the sum of its proper divisors (76948982448).

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

36981439824 is a wasteful number, since it uses less digits than its factorization.

36981439824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4785424 (or 4785418 counting only the distinct ones).

The product of its digits is 8957952, while the sum is 57.

The spelling of 36981439824 in words is "thirty-six billion, nine hundred eighty-one million, four hundred thirty-nine thousand, eight hundred twenty-four".