997150889504 has 96 divisors (see below), whose sum is σ = 2447802758016. Its totient is φ = 388460574720.

The previous prime is 997150889429. The next prime is 997150889533. The reversal of 997150889504 is 405988051799.

It is a happy number.

It is a pancake number, because a pancake can be divided into 997150889504 parts by 1412197 straight cuts.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38851844 + ... + 38877500.

It is an arithmetic number, because the mean of its divisors is an integer number (25497945396).

Almost surely, 2^997150889504 is an apocalyptic number.

It is an amenable number.

997150889504 is an abundant number, since it is smaller than the sum of its proper divisors (1450651868512).

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

997150889504 is a wasteful number, since it uses less digits than its factorization.

997150889504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41458 (or 41450 counting only the distinct ones).

The product of its (nonzero) digits is 32659200, while the sum is 65.

The spelling of 997150889504 in words is "nine hundred ninety-seven billion, one hundred fifty million, eight hundred eighty-nine thousand, five hundred four".