97126392917 has 4 divisors (see below), whose sum is σ = 97401538860. Its totient is φ = 96851246976.

The previous prime is 97126392911. The next prime is 97126392941. The reversal of 97126392917 is 71929362179.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71929362179 = 23 ⋅3127363573.

It can be written as a sum of positive squares in 2 ways, for example, as 40227923761 + 56898469156 = 200569^2 + 238534^2 .

It is a cyclic number.

It is not a de Polignac number, because 97126392917 - 2¹⁶ = 97126327381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97126392911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137572442 + ... + 137573147.

It is an arithmetic number, because the mean of its divisors is an integer number (24350384715).

Almost surely, 2^97126392917 is an apocalyptic number.

It is an amenable number.

97126392917 is a deficient number, since it is larger than the sum of its proper divisors (275145943).

97126392917 is a wasteful number, since it uses less digits than its factorization.

97126392917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275145942.

The product of its digits is 2571912, while the sum is 56.

The spelling of 97126392917 in words is "ninety-seven billion, one hundred twenty-six million, three hundred ninety-two thousand, nine hundred seventeen".