97985791052 has 12 divisors (see below), whose sum is σ = 171477338256. Its totient is φ = 48992265840.

The previous prime is 97985790997. The next prime is 97985791069. The reversal of 97985791052 is 25019758979.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 474977 + ... + 649287.

It is an arithmetic number, because the mean of its divisors is an integer number (14289778188).

Almost surely, 2^97985791052 is an apocalyptic number.

It is an amenable number.

97985791052 is a deficient number, since it is larger than the sum of its proper divisors (73491547204).

97985791052 is a wasteful number, since it uses less digits than its factorization.

97985791052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314848 (or 314846 counting only the distinct ones).

The product of its (nonzero) digits is 14288400, while the sum is 62.

The spelling of 97985791052 in words is "ninety-seven billion, nine hundred eighty-five million, seven hundred ninety-one thousand, fifty-two".