47143692257 has 4 divisors (see below), whose sum is σ = 47156729796. Its totient is φ = 47130654720.

The previous prime is 47143692247. The next prime is 47143692263. The reversal of 47143692257 is 75229634174.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12932010961 + 34211681296 = 113719^2 + 184964^2 .

It is a cyclic number.

It is not a de Polignac number, because 47143692257 - 2⁴ = 47143692241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47143692217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6513344 + ... + 6520577.

It is an arithmetic number, because the mean of its divisors is an integer number (11789182449).

Almost surely, 2^47143692257 is an apocalyptic number.

It is an amenable number.

47143692257 is a deficient number, since it is larger than the sum of its proper divisors (13037539).

47143692257 is a wasteful number, since it uses less digits than its factorization.

47143692257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13037538.

The product of its digits is 2540160, while the sum is 50.

The spelling of 47143692257 in words is "forty-seven billion, one hundred forty-three million, six hundred ninety-two thousand, two hundred fifty-seven".