97179520100 has 72 divisors (see below), whose sum is σ = 227827579560. Its totient is φ = 35766881280.

The previous prime is 97179520091. The next prime is 97179520147. The reversal of 97179520100 is 102597179.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 78430242916 + 18749277184 = 280054^2 + 136928^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 287486 + ... + 526314.

Almost surely, 2^97179520100 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 97179520100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113913789780).

97179520100 is an abundant number, since it is smaller than the sum of its proper divisors (130648059460).

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

97179520100 is a wasteful number, since it uses less digits than its factorization.

97179520100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239169 (or 239162 counting only the distinct ones).

The product of its (nonzero) digits is 39690, while the sum is 41.

The spelling of 97179520100 in words is "ninety-seven billion, one hundred seventy-nine million, five hundred twenty thousand, one hundred".