97813755731879 has 16 divisors (see below), whose sum is σ = 112322483239680. Its totient is φ = 84241161797760.

The previous prime is 97813755731851. The next prime is 97813755731903.

It is a happy number.

97813755731879 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 97813755731879 - 2²⁴ = 97813738954663 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 (97813755737879) 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, 57909599 + ... + 59574735.

It is an arithmetic number, because the mean of its divisors is an integer number (7020155202480).

Almost surely, 2^{97813755731879} is an apocalyptic number.

97813755731879 is a deficient number, since it is larger than the sum of its proper divisors (14508727507801).

97813755731879 is a wasteful number, since it uses less digits than its factorization.

97813755731879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1946230.

The product of its digits is 2800526400, while the sum is 80.

The spelling of 97813755731879 in words is "ninety-seven trillion, eight hundred thirteen billion, seven hundred fifty-five million, seven hundred thirty-one thousand, eight hundred seventy-nine".