65795397831 has 24 divisors (see below), whose sum is σ = 95189211936. Its totient is φ = 43793786880.

The previous prime is 65795397781. The next prime is 65795397851. The reversal of 65795397831 is 13879359756.

65795397831 is a `hidden beast` number, since 6 + 579 + 53 + 9 + 7 + 8 + 3 + 1 = 666.

It is not a de Polignac number, because 65795397831 - 2¹⁵ = 65795365063 is a prime.

It is a super-2 number, since 2×65795397831² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65795397851) 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 23 ways as a sum of consecutive naturals, for example, 23898151 + ... + 23900903.

It is an arithmetic number, because the mean of its divisors is an integer number (3966217164).

Almost surely, 2^65795397831 is an apocalyptic number.

65795397831 is a deficient number, since it is larger than the sum of its proper divisors (29393814105).

65795397831 is a wasteful number, since it uses less digits than its factorization.

65795397831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6023 (or 6020 counting only the distinct ones).

The product of its digits is 42865200, while the sum is 63.

The spelling of 65795397831 in words is "sixty-five billion, seven hundred ninety-five million, three hundred ninety-seven thousand, eight hundred thirty-one".