50512406640 has 80 divisors (see below), whose sum is σ = 159155530656. Its totient is φ = 13249152000.

The previous prime is 50512406627. The next prime is 50512406653. The reversal of 50512406640 is 4660421505.

It is an interprime number because it is at equal distance from previous prime (50512406627) and next prime (50512406653).

It is a tau number, because it is divible by the number of its divisors (80).

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1710511 + ... + 1739790.

Almost surely, 2^50512406640 is an apocalyptic number.

It is an amenable number.

50512406640 is an abundant number, since it is smaller than the sum of its proper divisors (108643124016).

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

50512406640 is a wasteful number, since it uses less digits than its factorization.

50512406640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3450378 (or 3450372 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

The spelling of 50512406640 in words is "fifty billion, five hundred twelve million, four hundred six thousand, six hundred forty".