125787422780 has 24 divisors (see below), whose sum is σ = 264281717952. Its totient is φ = 50290563392.

The previous prime is 125787422779. The next prime is 125787422791. The reversal of 125787422780 is 87224787521.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1483067 + ... + 1565586.

It is an arithmetic number, because the mean of its divisors is an integer number (11011738248).

Almost surely, 2^125787422780 is an apocalyptic number.

125787422780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125787422780 is an abundant number, since it is smaller than the sum of its proper divisors (138494295172).

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

125787422780 is a wasteful number, since it uses less digits than its factorization.

125787422780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3050725 (or 3050723 counting only the distinct ones).

The product of its (nonzero) digits is 3512320, while the sum is 53.

The spelling of 125787422780 in words is "one hundred twenty-five billion, seven hundred eighty-seven million, four hundred twenty-two thousand, seven hundred eighty".