997008518928 has 40 divisors (see below), whose sum is σ = 2575675749376. Its totient is φ = 332327088000.

The previous prime is 997008518903. The next prime is 997008518941. The reversal of 997008518928 is 829815800799.

It is a super-3 number, since 3×997008518928³ (a number of 37 digits) contains 333 as substring.

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 7 ways as a sum of consecutive naturals, for example, 1622193 + ... + 2150703.

Almost surely, 2^997008518928 is an apocalyptic number.

It is an amenable number.

997008518928 is an abundant number, since it is smaller than the sum of its proper divisors (1578667230448).

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

997008518928 is a wasteful number, since it uses less digits than its factorization.

997008518928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567823 (or 567817 counting only the distinct ones).

The product of its (nonzero) digits is 26127360, while the sum is 66.

The spelling of 997008518928 in words is "nine hundred ninety-seven billion, eight million, five hundred eighteen thousand, nine hundred twenty-eight".