47972539368 has 48 divisors (see below), whose sum is σ = 139919909220. Its totient is φ = 14760781056.

The previous prime is 47972539357. The next prime is 47972539423. The reversal of 47972539368 is 86393527974.

47972539368 is a `hidden beast` number, since 4 + 7 + 97 + 2 + 539 + 3 + 6 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 47261890404 + 710648964 = 217398^2 + 26658^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25625421 + ... + 25627292.

Almost surely, 2^47972539368 is an apocalyptic number.

It is an amenable number.

47972539368 is an abundant number, since it is smaller than the sum of its proper divisors (91947369852).

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

47972539368 is a wasteful number, since it uses less digits than its factorization.

47972539368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51252738 (or 51252731 counting only the distinct ones).

The product of its digits is 68584320, while the sum is 63.

The spelling of 47972539368 in words is "forty-seven billion, nine hundred seventy-two million, five hundred thirty-nine thousand, three hundred sixty-eight".