125537689415 has 8 divisors (see below), whose sum is σ = 150665848368. Its totient is φ = 100416404160.

The previous prime is 125537689379. The next prime is 125537689427. The reversal of 125537689415 is 514986735521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 125537689415 - 2⁸ = 125537689159 is a prime.

It is a super-2 number, since 2×125537689415² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1678157 + ... + 1751366.

It is an arithmetic number, because the mean of its divisors is an integer number (18833231046).

Almost surely, 2^125537689415 is an apocalyptic number.

125537689415 is a deficient number, since it is larger than the sum of its proper divisors (25128158953).

125537689415 is an equidigital number, since it uses as much as digits as its factorization.

125537689415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3436849.

The product of its digits is 9072000, while the sum is 56.

The spelling of 125537689415 in words is "one hundred twenty-five billion, five hundred thirty-seven million, six hundred eighty-nine thousand, four hundred fifteen".