47877695857 has 4 divisors (see below), whose sum is σ = 48483742720. Its totient is φ = 47271648996.

The previous prime is 47877695849. The next prime is 47877695861. The reversal of 47877695857 is 75859677874.

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.

It is a cyclic number.

It is not a de Polignac number, because 47877695857 - 2³ = 47877695849 is a prime.

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 47877695857.

It is not an unprimeable number, because it can be changed into a prime (47877690857) 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, 303023313 + ... + 303023470.

It is an arithmetic number, because the mean of its divisors is an integer number (12120935680).

Almost surely, 2^47877695857 is an apocalyptic number.

It is an amenable number.

47877695857 is a deficient number, since it is larger than the sum of its proper divisors (606046863).

47877695857 is an equidigital number, since it uses as much as digits as its factorization.

47877695857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606046862.

The product of its digits is 829785600, while the sum is 73.

The spelling of 47877695857 in words is "forty-seven billion, eight hundred seventy-seven million, six hundred ninety-five thousand, eight hundred fifty-seven".