47772715547 has 16 divisors (see below), whose sum is σ = 49984264512. Its totient is φ = 45572567040.

The previous prime is 47772715477. The next prime is 47772715567. The reversal of 47772715547 is 74551727774.

It is a cyclic number.

It is not a de Polignac number, because 47772715547 - 2²⁸ = 47504280091 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47772715492 and 47772715501.

It is not an unprimeable number, because it can be changed into a prime (47772715567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18948647 + ... + 18951167.

It is an arithmetic number, because the mean of its divisors is an integer number (3124016532).

Almost surely, 2^47772715547 is an apocalyptic number.

47772715547 is a deficient number, since it is larger than the sum of its proper divisors (2211548965).

47772715547 is a wasteful number, since it uses less digits than its factorization.

47772715547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4438.

The product of its digits is 13445600, while the sum is 56.

The spelling of 47772715547 in words is "forty-seven billion, seven hundred seventy-two million, seven hundred fifteen thousand, five hundred forty-seven".