47976517440 has 84 divisors (see below), whose sum is σ = 165019239684. Its totient is φ = 12793737216.

The previous prime is 47976517427. The next prime is 47976517451. The reversal of 47976517440 is 4471567974.

It is a happy number.

47976517440 is a `hidden beast` number, since 47 + 97 + 65 + 17 + 440 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 34488946944 + 13487570496 = 185712^2 + 116136^2 .

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 11 ways as a sum of consecutive naturals, for example, 8326377 + ... + 8332136.

Almost surely, 2^47976517440 is an apocalyptic number.

47976517440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47976517440 is an abundant number, since it is smaller than the sum of its proper divisors (117042722244).

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

47976517440 is a wasteful number, since it uses less digits than its factorization.

47976517440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16658536 (or 16658523 counting only the distinct ones).

The product of its (nonzero) digits is 5927040, while the sum is 54.

The spelling of 47976517440 in words is "forty-seven billion, nine hundred seventy-six million, five hundred seventeen thousand, four hundred forty".