97790928612 has 72 divisors (see below), whose sum is σ = 247516869600. Its totient is φ = 30036464640.

The previous prime is 97790928611. The next prime is 97790928617. The reversal of 97790928612 is 21682909779.

It is not an unprimeable number, because it can be changed into a prime (97790928611) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1115764 + ... + 1200212.

It is an arithmetic number, because the mean of its divisors is an integer number (3437734300).

Almost surely, 2^97790928612 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 97790928612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123758434800).

97790928612 is an abundant number, since it is smaller than the sum of its proper divisors (149725940988).

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

97790928612 is a wasteful number, since it uses less digits than its factorization.

97790928612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85053 (or 85038 counting only the distinct ones).

The product of its (nonzero) digits is 6858432, while the sum is 60.

The spelling of 97790928612 in words is "ninety-seven billion, seven hundred ninety million, nine hundred twenty-eight thousand, six hundred twelve".