125644062570 has 128 divisors (see below), whose sum is σ = 350332625664. Its totient is φ = 28559192064.

The previous prime is 125644062563. The next prime is 125644062611. The reversal of 125644062570 is 75260446521.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 172609 + ... + 530171.

It is an arithmetic number, because the mean of its divisors is an integer number (2736973638).

Almost surely, 2^125644062570 is an apocalyptic number.

125644062570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 125644062570, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175166312832).

125644062570 is an abundant number, since it is smaller than the sum of its proper divisors (224688563094).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125644062570 is a wasteful number, since it uses less digits than its factorization.

125644062570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357656.

The product of its (nonzero) digits is 403200, while the sum is 42.

The spelling of 125644062570 in words is "one hundred twenty-five billion, six hundred forty-four million, sixty-two thousand, five hundred seventy".