47517284977 has 4 divisors (see below), whose sum is σ = 48622338160. Its totient is φ = 46412231796.

The previous prime is 47517284963. The next prime is 47517284981. The reversal of 47517284977 is 77948271574.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 77948271574 = 2 ⋅38974135787.

It is a cyclic number.

It is not a de Polignac number, because 47517284977 - 2¹⁹ = 47516760689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47517284917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 552526527 + ... + 552526612.

It is an arithmetic number, because the mean of its divisors is an integer number (12155584540).

Almost surely, 2^47517284977 is an apocalyptic number.

It is an amenable number.

47517284977 is a deficient number, since it is larger than the sum of its proper divisors (1105053183).

47517284977 is a wasteful number, since it uses less digits than its factorization.

47517284977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105053182.

The product of its digits is 27659520, while the sum is 61.

The spelling of 47517284977 in words is "forty-seven billion, five hundred seventeen million, two hundred eighty-four thousand, nine hundred seventy-seven".