47857746031 has 4 divisors (see below), whose sum is σ = 48531798864. Its totient is φ = 47183693200.

The previous prime is 47857746017. The next prime is 47857746071. The reversal of 47857746031 is 13064775874.

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

It is a cyclic number.

It is not a de Polignac number, because 47857746031 - 2³³ = 39267811439 is a prime.

It is a super-2 number, since 2×47857746031² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47857746031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47857746071) 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, 337026310 + ... + 337026451.

It is an arithmetic number, because the mean of its divisors is an integer number (12132949716).

Almost surely, 2^47857746031 is an apocalyptic number.

47857746031 is a deficient number, since it is larger than the sum of its proper divisors (674052833).

47857746031 is an equidigital number, since it uses as much as digits as its factorization.

47857746031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674052832.

The product of its (nonzero) digits is 3951360, while the sum is 52.

The spelling of 47857746031 in words is "forty-seven billion, eight hundred fifty-seven million, seven hundred forty-six thousand, thirty-one".