93872358917 has 4 divisors (see below), whose sum is σ = 93880341516. Its totient is φ = 93864376320.

The previous prime is 93872358893. The next prime is 93872358919. The reversal of 93872358917 is 71985327839.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71985327839 = 491 ⋅146609629.

It can be written as a sum of positive squares in 2 ways, for example, as 70857648481 + 23014710436 = 266191^2 + 151706^2 .

It is a cyclic number.

It is not a de Polignac number, because 93872358917 - 2⁸ = 93872358661 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 93872358917.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (93872358919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3973634 + ... + 3997187.

It is an arithmetic number, because the mean of its divisors is an integer number (23470085379).

Almost surely, 2^93872358917 is an apocalyptic number.

It is an amenable number.

93872358917 is a deficient number, since it is larger than the sum of its proper divisors (7982599).

93872358917 is a wasteful number, since it uses less digits than its factorization.

93872358917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7982598.

The product of its digits is 22861440, while the sum is 62.

The spelling of 93872358917 in words is "ninety-three billion, eight hundred seventy-two million, three hundred fifty-eight thousand, nine hundred seventeen".