97771951632 has 40 divisors (see below), whose sum is σ = 261287115840. Its totient is φ = 31466834560.

The previous prime is 97771951621. The next prime is 97771951633. The reversal of 97771951632 is 23615917779.

It is not an unprimeable number, because it can be changed into a prime (97771951633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35117844 + ... + 35120627.

It is an arithmetic number, because the mean of its divisors is an integer number (6532177896).

Almost surely, 2^97771951632 is an apocalyptic number.

It is an amenable number.

97771951632 is an abundant number, since it is smaller than the sum of its proper divisors (163515164208).

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

97771951632 is a wasteful number, since it uses less digits than its factorization.

97771951632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70238511 (or 70238505 counting only the distinct ones).

The product of its digits is 5000940, while the sum is 57.

The spelling of 97771951632 in words is "ninety-seven billion, seven hundred seventy-one million, nine hundred fifty-one thousand, six hundred thirty-two".