47439890032 has 20 divisors (see below), whose sum is σ = 91924317856. Its totient is φ = 23717485440.

The previous prime is 47439890021. The next prime is 47439890063. The reversal of 47439890032 is 23009893474.

It is a happy number.

It is a super-2 number, since 2×47439890032² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10732 + ... + 308212.

Almost surely, 2^47439890032 is an apocalyptic number.

It is an amenable number.

47439890032 is a deficient number, since it is larger than the sum of its proper divisors (44484427824).

47439890032 is a wasteful number, since it uses less digits than its factorization.

47439890032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307456 (or 307450 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 49.

The spelling of 47439890032 in words is "forty-seven billion, four hundred thirty-nine million, eight hundred ninety thousand, thirty-two".