7810115662125 has 96 divisors (see below), whose sum is σ = 16101624704256. Its totient is φ = 3567831465600.

The previous prime is 7810115662123. The next prime is 7810115662177. The reversal of 7810115662125 is 5212665110187.

7810115662125 is a `hidden beast` number, since 7 + 8 + 1 + 0 + 1 + 15 + 6 + 621 + 2 + 5 = 666.

It is not a de Polignac number, because 7810115662125 - 2¹ = 7810115662123 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7810115662123) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 10890127 + ... + 11585123.

It is an arithmetic number, because the mean of its divisors is an integer number (167725257336).

Almost surely, 2^{7810115662125} is an apocalyptic number.

7810115662125 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

7810115662125 is an abundant number, since it is smaller than the sum of its proper divisors (8291509042131).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7810115662125 is a wasteful number, since it uses less digits than its factorization.

7810115662125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696452 (or 696439 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 45.

It can be divided in two parts, 78101156 and 62125, that added together give a square (78163281 = 8841²).

The spelling of 7810115662125 in words is "seven trillion, eight hundred ten billion, one hundred fifteen million, six hundred sixty-two thousand, one hundred twenty-five".