125796919578 has 64 divisors (see below), whose sum is σ = 286604946432. Its totient is φ = 36436695680.

The previous prime is 125796919517. The next prime is 125796919597. The reversal of 125796919578 is 875919697521.

It is a Harshad number since it is a multiple of its sum of digits (69).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2137150 + ... + 2195222.

It is an arithmetic number, because the mean of its divisors is an integer number (4478202288).

Almost surely, 2^125796919578 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125796919578, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143302473216).

125796919578 is an abundant number, since it is smaller than the sum of its proper divisors (160808026854).

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

125796919578 is a wasteful number, since it uses less digits than its factorization.

125796919578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59539.

The product of its digits is 85730400, while the sum is 69.

The spelling of 125796919578 in words is "one hundred twenty-five billion, seven hundred ninety-six million, nine hundred nineteen thousand, five hundred seventy-eight".