97174720139 has 16 divisors (see below), whose sum is σ = 115279097856. Its totient is φ = 80184016800.

The previous prime is 97174720129. The next prime is 97174720157. The reversal of 97174720139 is 93102747179.

It is a cyclic number.

It is not a de Polignac number, because 97174720139 - 2³⁶ = 28455243403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97174720129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2400947 + ... + 2441084.

It is an arithmetic number, because the mean of its divisors is an integer number (7204943616).

Almost surely, 2^97174720139 is an apocalyptic number.

97174720139 is a deficient number, since it is larger than the sum of its proper divisors (18104377717).

97174720139 is a wasteful number, since it uses less digits than its factorization.

97174720139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4842146.

The product of its (nonzero) digits is 666792, while the sum is 50.

The spelling of 97174720139 in words is "ninety-seven billion, one hundred seventy-four million, seven hundred twenty thousand, one hundred thirty-nine".