47618643941 has 4 divisors (see below), whose sum is σ = 51947611584. Its totient is φ = 43289676300.

The previous prime is 47618643869. The next prime is 47618643967. The reversal of 47618643941 is 14934681674.

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 47618643941 - 2²² = 47614449637 is a prime.

It is a super-2 number, since 2×47618643941² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47618643041) 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, 2164483805 + ... + 2164483826.

It is an arithmetic number, because the mean of its divisors is an integer number (12986902896).

Almost surely, 2^47618643941 is an apocalyptic number.

It is an amenable number.

47618643941 is a deficient number, since it is larger than the sum of its proper divisors (4328967643).

47618643941 is a wasteful number, since it uses less digits than its factorization.

47618643941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4328967642.

The product of its digits is 3483648, while the sum is 53.

The spelling of 47618643941 in words is "forty-seven billion, six hundred eighteen million, six hundred forty-three thousand, nine hundred forty-one".