47404172679 has 4 divisors (see below), whose sum is σ = 63205563576. Its totient is φ = 31602781784.

The previous prime is 47404172663. The next prime is 47404172681. The reversal of 47404172679 is 97627140474.

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 47404172679 - 2⁴ = 47404172663 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47404172659) 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, 7900695444 + ... + 7900695449.

It is an arithmetic number, because the mean of its divisors is an integer number (15801390894).

Almost surely, 2^47404172679 is an apocalyptic number.

47404172679 is a deficient number, since it is larger than the sum of its proper divisors (15801390897).

47404172679 is a wasteful number, since it uses less digits than its factorization.

47404172679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15801390896.

The product of its (nonzero) digits is 2370816, while the sum is 51.

The spelling of 47404172679 in words is "forty-seven billion, four hundred four million, one hundred seventy-two thousand, six hundred seventy-nine".