125542635867195 has 64 divisors (see below), whose sum is σ = 214601634938880. Its totient is φ = 62483696085888.

The previous prime is 125542635867179. The next prime is 125542635867197. The reversal of 125542635867195 is 591768536245521.

It is not a de Polignac number, because 125542635867195 - 2⁴ = 125542635867179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125542635867197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1114461544 + ... + 1114574186.

It is an arithmetic number, because the mean of its divisors is an integer number (3353150545920).

Almost surely, 2^{125542635867195} is an apocalyptic number.

125542635867195 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

125542635867195 is a deficient number, since it is larger than the sum of its proper divisors (89058999071685).

125542635867195 is a wasteful number, since it uses less digits than its factorization.

125542635867195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171104.

The product of its digits is 544320000, while the sum is 69.

The spelling of 125542635867195 in words is "one hundred twenty-five trillion, five hundred forty-two billion, six hundred thirty-five million, eight hundred sixty-seven thousand, one hundred ninety-five".