125745959646 has 48 divisors (see below), whose sum is σ = 285240206160. Its totient is φ = 39982360320.

The previous prime is 125745959561. The next prime is 125745959671. The reversal of 125745959646 is 646959547521.

125745959646 is a `hidden beast` number, since 1 + 2 + 57 + 459 + 5 + 96 + 46 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1407835 + ... + 1494486.

It is an arithmetic number, because the mean of its divisors is an integer number (5942504295).

Almost surely, 2^125745959646 is an apocalyptic number.

125745959646 is an abundant number, since it is smaller than the sum of its proper divisors (159494246514).

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

125745959646 is a wasteful number, since it uses less digits than its factorization.

125745959646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2902441 (or 2902438 counting only the distinct ones).

The product of its digits is 81648000, while the sum is 63.

The spelling of 125745959646 in words is "one hundred twenty-five billion, seven hundred forty-five million, nine hundred fifty-nine thousand, six hundred forty-six".