125886793506 has 64 divisors (see below), whose sum is σ = 263723040000. Its totient is φ = 40008184832.

The previous prime is 125886793493. The next prime is 125886793531. The reversal of 125886793506 is 605397688521.

It is a self number, because there is not a number n which added to its sum of digits gives 125886793506.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12987910 + ... + 12997598.

It is an arithmetic number, because the mean of its divisors is an integer number (4120672500).

Almost surely, 2^125886793506 is an apocalyptic number.

125886793506 is an abundant number, since it is smaller than the sum of its proper divisors (137836246494).

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

125886793506 is a wasteful number, since it uses less digits than its factorization.

125886793506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10651.

The product of its (nonzero) digits is 21772800, while the sum is 60.

The spelling of 125886793506 in words is "one hundred twenty-five billion, eight hundred eighty-six million, seven hundred ninety-three thousand, five hundred six".