125851675705 has 24 divisors (see below), whose sum is σ = 175780168200. Its totient is φ = 86248431360.

The previous prime is 125851675681. The next prime is 125851675777. The reversal of 125851675705 is 507576158521.

It can be written as a sum of positive squares in 4 ways, for example, as 260112384 + 125591563321 = 16128^2 + 354389^2 .

It is not a de Polignac number, because 125851675705 - 2⁷ = 125851675577 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 279021 + ... + 574069.

It is an arithmetic number, because the mean of its divisors is an integer number (7324173675).

Almost surely, 2^125851675705 is an apocalyptic number.

It is an amenable number.

125851675705 is a deficient number, since it is larger than the sum of its proper divisors (49928492495).

125851675705 is a wasteful number, since it uses less digits than its factorization.

125851675705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296809 (or 296802 counting only the distinct ones).

The product of its (nonzero) digits is 2940000, while the sum is 52.

The spelling of 125851675705 in words is "one hundred twenty-five billion, eight hundred fifty-one million, six hundred seventy-five thousand, seven hundred five".