95309315721397 has 4 divisors (see below), whose sum is σ = 95309396854956. Its totient is φ = 95309234587840.

The previous prime is 95309315721343. The next prime is 95309315721449. The reversal of 95309315721397 is 79312751390359.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 42731140052836 + 52578175668561 = 6536906^2 + 7251081^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-95309315721397 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 (95309315721097) 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, 38778418 + ... + 41162899.

It is an arithmetic number, because the mean of its divisors is an integer number (23827349213739).

Almost surely, 2^{95309315721397} is an apocalyptic number.

It is an amenable number.

95309315721397 is a deficient number, since it is larger than the sum of its proper divisors (81133559).

95309315721397 is a wasteful number, since it uses less digits than its factorization.

95309315721397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81133558.

The product of its (nonzero) digits is 48223350, while the sum is 64.

The spelling of 95309315721397 in words is "ninety-five trillion, three hundred nine billion, three hundred fifteen million, seven hundred twenty-one thousand, three hundred ninety-seven".