47975751972 has 36 divisors (see below), whose sum is σ = 124229898156. Its totient is φ = 15601870080.

The previous prime is 47975751961. The next prime is 47975751973. The reversal of 47975751972 is 27915757974.

47975751972 is a `hidden beast` number, since 47 + 9 + 7 + 5 + 7 + 519 + 72 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 23594803236 + 24380948736 = 153606^2 + 156144^2 .

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 (47975751973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16250473 + ... + 16253424.

Almost surely, 2^47975751972 is an apocalyptic number.

It is an amenable number.

47975751972 is an abundant number, since it is smaller than the sum of its proper divisors (76254146184).

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

47975751972 is a wasteful number, since it uses less digits than its factorization.

47975751972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32503948 (or 32503943 counting only the distinct ones).

The product of its digits is 38896200, while the sum is 63.

The spelling of 47975751972 in words is "forty-seven billion, nine hundred seventy-five million, seven hundred fifty-one thousand, nine hundred seventy-two".