125927180651 has 4 divisors (see below), whose sum is σ = 126185758512. Its totient is φ = 125668602792.

The previous prime is 125927180641. The next prime is 125927180657. The reversal of 125927180651 is 156081729521.

It is a happy number.

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 125927180651 - 2¹⁰ = 125927179627 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125927180596 and 125927180605.

It is not an unprimeable number, because it can be changed into a prime (125927180657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129288200 + ... + 129289173.

It is an arithmetic number, because the mean of its divisors is an integer number (31546439628).

Almost surely, 2^125927180651 is an apocalyptic number.

125927180651 is a deficient number, since it is larger than the sum of its proper divisors (258577861).

125927180651 is an equidigital number, since it uses as much as digits as its factorization.

125927180651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258577860.

The product of its (nonzero) digits is 302400, while the sum is 47.

The spelling of 125927180651 in words is "one hundred twenty-five billion, nine hundred twenty-seven million, one hundred eighty thousand, six hundred fifty-one".