997036137853504 has 56 divisors (see below), whose sum is σ = 2380142659933760. Its totient is φ = 404811664989696.

The previous prime is 997036137853499. The next prime is 997036137853531. The reversal of 997036137853504 is 405358731630799.

It is a tau number, because it is divible by the number of its divisors (56).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58566493947 + ... + 58566510970.

Almost surely, 2^{997036137853504} is an apocalyptic number.

It is an amenable number.

997036137853504 is an abundant number, since it is smaller than the sum of its proper divisors (1383106522080256).

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

997036137853504 is a wasteful number, since it uses less digits than its factorization.

997036137853504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117133004955 (or 117133004945 counting only the distinct ones).

The product of its (nonzero) digits is 514382400, while the sum is 70.

The spelling of 997036137853504 in words is "nine hundred ninety-seven trillion, thirty-six billion, one hundred thirty-seven million, eight hundred fifty-three thousand, five hundred four".