97499531530 has 32 divisors (see below), whose sum is σ = 175985187840. Its totient is φ = 38891910720.

The previous prime is 97499531509. The next prime is 97499531551. The reversal of 97499531530 is 3513599479.

It is an interprime number because it is at equal distance from previous prime (97499531509) and next prime (97499531551).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9117847 + ... + 9128533.

It is an arithmetic number, because the mean of its divisors is an integer number (5499537120).

Almost surely, 2^97499531530 is an apocalyptic number.

97499531530 is a deficient number, since it is larger than the sum of its proper divisors (78485656310).

97499531530 is a wasteful number, since it uses less digits than its factorization.

97499531530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13134.

The product of its (nonzero) digits is 4592700, while the sum is 55.

The spelling of 97499531530 in words is "ninety-seven billion, four hundred ninety-nine million, five hundred thirty-one thousand, five hundred thirty".