47990493828 has 36 divisors (see below), whose sum is σ = 124130454448. Its totient is φ = 15624811440.

The previous prime is 47990493821. The next prime is 47990493851. The reversal of 47990493828 is 82839409974.

47990493828 is a `hidden beast` number, since 479 + 90 + 49 + 38 + 2 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (47990493821) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15499258 + ... + 15502353.

Almost surely, 2^47990493828 is an apocalyptic number.

It is an amenable number.

47990493828 is an abundant number, since it is smaller than the sum of its proper divisors (76139960620).

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

47990493828 is a wasteful number, since it uses less digits than its factorization.

47990493828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31001664 (or 31001659 counting only the distinct ones).

The product of its (nonzero) digits is 31352832, while the sum is 63.

The spelling of 47990493828 in words is "forty-seven billion, nine hundred ninety million, four hundred ninety-three thousand, eight hundred twenty-eight".