97815873200 has 30 divisors (see below), whose sum is σ = 235002636324. Its totient is φ = 39126349120.

The previous prime is 97815873193. The next prime is 97815873203. The reversal of 97815873200 is 237851879.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is not an unprimeable number, because it can be changed into a prime (97815873203) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 122269442 + ... + 122270241.

Almost surely, 2^97815873200 is an apocalyptic number.

It is an amenable number.

97815873200 is an abundant number, since it is smaller than the sum of its proper divisors (137186763124).

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

97815873200 is a wasteful number, since it uses less digits than its factorization.

97815873200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244539701 (or 244539690 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 50.

The spelling of 97815873200 in words is "ninety-seven billion, eight hundred fifteen million, eight hundred seventy-three thousand, two hundred".