97689647402 has 16 divisors (see below), whose sum is σ = 154258689600. Its totient is φ = 46307671872.

The previous prime is 97689647387. The next prime is 97689647423. The reversal of 97689647402 is 20474698679.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9391652 + ... + 9402047.

It is an arithmetic number, because the mean of its divisors is an integer number (9641168100).

Almost surely, 2^97689647402 is an apocalyptic number.

97689647402 is a deficient number, since it is larger than the sum of its proper divisors (56569042198).

97689647402 is a wasteful number, since it uses less digits than its factorization.

97689647402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18793837.

The product of its (nonzero) digits is 36578304, while the sum is 62.

The spelling of 97689647402 in words is "ninety-seven billion, six hundred eighty-nine million, six hundred forty-seven thousand, four hundred two".