47768256991 has 32 divisors (see below), whose sum is σ = 61937254400. Its totient is φ = 35775820800.

The previous prime is 47768256983. The next prime is 47768257013. The reversal of 47768256991 is 19965286774.

It is a cyclic number.

It is not a de Polignac number, because 47768256991 - 2³ = 47768256983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47768256931) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2200591 + ... + 2222191.

It is an arithmetic number, because the mean of its divisors is an integer number (1935539200).

Almost surely, 2^47768256991 is an apocalyptic number.

47768256991 is a deficient number, since it is larger than the sum of its proper divisors (14168997409).

47768256991 is a wasteful number, since it uses less digits than its factorization.

47768256991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22919.

The product of its digits is 45722880, while the sum is 64.

The spelling of 47768256991 in words is "forty-seven billion, seven hundred sixty-eight million, two hundred fifty-six thousand, nine hundred ninety-one".