125127057511651 has 4 divisors (see below), whose sum is σ = 134752215781792. Its totient is φ = 115501899241512.

The previous prime is 125127057511609. The next prime is 125127057511679. The reversal of 125127057511651 is 156115750721521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 125127057511651 - 2²¹ = 125127055414499 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125127057511595 and 125127057511604.

It is not an unprimeable number, because it can be changed into a prime (125127057011651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4812579135051 + ... + 4812579135076.

It is an arithmetic number, because the mean of its divisors is an integer number (33688053945448).

Almost surely, 2^{125127057511651} is an apocalyptic number.

125127057511651 is a deficient number, since it is larger than the sum of its proper divisors (9625158270141).

125127057511651 is an equidigital number, since it uses as much as digits as its factorization.

125127057511651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9625158270140.

The product of its (nonzero) digits is 735000, while the sum is 49.

The spelling of 125127057511651 in words is "one hundred twenty-five trillion, one hundred twenty-seven billion, fifty-seven million, five hundred eleven thousand, six hundred fifty-one".