865162938212131 has 48 divisors (see below), whose sum is σ = 989789078304000. Its totient is φ = 753780800582784.

The previous prime is 865162938212123. The next prime is 865162938212137. The reversal of 865162938212131 is 131212839261568.

It is not a de Polignac number, because 865162938212131 - 2³ = 865162938212123 is a prime.

It is a super-2 number, since 2×865162938212131² (a number of 31 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (865162938212137) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11675733720 + ... + 11675807818.

It is an arithmetic number, because the mean of its divisors is an integer number (20620605798000).

Almost surely, 2^{865162938212131} is an apocalyptic number.

865162938212131 is a deficient number, since it is larger than the sum of its proper divisors (124626140091869).

865162938212131 is a wasteful number, since it uses less digits than its factorization.

865162938212131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87548 (or 87535 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 58.

The spelling of 865162938212131 in words is "eight hundred sixty-five trillion, one hundred sixty-two billion, nine hundred thirty-eight million, two hundred twelve thousand, one hundred thirty-one".