125420336644 has 24 divisors (see below), whose sum is σ = 219950458560. Its totient is φ = 62577461856.

The previous prime is 125420336623. The next prime is 125420336651. The reversal of 125420336644 is 446633024521.

It is a junction number, because it is equal to n+sod(n) for n = 125420336597 and 125420336606.

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 7 ways as a sum of consecutive naturals, for example, 4844767 + ... + 4870585.

It is an arithmetic number, because the mean of its divisors is an integer number (9164602440).

Almost surely, 2^125420336644 is an apocalyptic number.

It is an amenable number.

125420336644 is a deficient number, since it is larger than the sum of its proper divisors (94530121916).

125420336644 is a wasteful number, since it uses less digits than its factorization.

125420336644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28347 (or 28345 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 40.

The spelling of 125420336644 in words is "one hundred twenty-five billion, four hundred twenty million, three hundred thirty-six thousand, six hundred forty-four".