47977465192 has 8 divisors (see below), whose sum is σ = 89957747250. Its totient is φ = 23988732592.

The previous prime is 47977465169. The next prime is 47977465219. The reversal of 47977465192 is 29156477974.

It can be written as a sum of positive squares in only one way, i.e., 46814245956 + 1163219236 = 216366^2 + 34106^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 47977465192.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2998591567 + ... + 2998591582.

Almost surely, 2^47977465192 is an apocalyptic number.

It is an amenable number.

47977465192 is a deficient number, since it is larger than the sum of its proper divisors (41980282058).

47977465192 is a wasteful number, since it uses less digits than its factorization.

47977465192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5997183155 (or 5997183151 counting only the distinct ones).

The product of its digits is 26671680, while the sum is 61.

The spelling of 47977465192 in words is "forty-seven billion, nine hundred seventy-seven million, four hundred sixty-five thousand, one hundred ninety-two".