97009640928 has 120 divisors (see below), whose sum is σ = 295140910680. Its totient is φ = 31221469440.

The previous prime is 97009640921. The next prime is 97009640929. The reversal of 97009640928 is 82904690079.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97009640921) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 570118 + ... + 720453.

It is an arithmetic number, because the mean of its divisors is an integer number (2459507589).

Almost surely, 2^97009640928 is an apocalyptic number.

It is an amenable number.

97009640928 is an abundant number, since it is smaller than the sum of its proper divisors (198131269752).

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

97009640928 is a wasteful number, since it uses less digits than its factorization.

97009640928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1290622 (or 1290605 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 54.

The spelling of 97009640928 in words is "ninety-seven billion, nine million, six hundred forty thousand, nine hundred twenty-eight".