47979632565 has 12 divisors (see below), whose sum is σ = 83164696524. Its totient is φ = 25589137344.

The previous prime is 47979632557. The next prime is 47979632653. The reversal of 47979632565 is 56523697974.

47979632565 is a `hidden beast` number, since 4 + 7 + 9 + 7 + 9 + 63 + 2 + 565 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 31838692356 + 16140940209 = 178434^2 + 127047^2 .

It is not a de Polignac number, because 47979632565 - 2³ = 47979632557 is a prime.

It is a congruent number.

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, 533106984 + ... + 533107073.

It is an arithmetic number, because the mean of its divisors is an integer number (6930391377).

Almost surely, 2^47979632565 is an apocalyptic number.

47979632565 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

47979632565 is a deficient number, since it is larger than the sum of its proper divisors (35185063959).

47979632565 is a wasteful number, since it uses less digits than its factorization.

47979632565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1066214068 (or 1066214065 counting only the distinct ones).

The product of its digits is 85730400, while the sum is 63.

The spelling of 47979632565 in words is "forty-seven billion, nine hundred seventy-nine million, six hundred thirty-two thousand, five hundred sixty-five".