47904789479 has 2 divisors, whose sum is σ = 47904789480. Its totient is φ = 47904789478.

The previous prime is 47904789467. The next prime is 47904789557. The reversal of 47904789479 is 97498740974.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47904789479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47904389479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23952394739 + 23952394740.

It is an arithmetic number, because the mean of its divisors is an integer number (23952394740).

Almost surely, 2^47904789479 is an apocalyptic number.

47904789479 is a deficient number, since it is larger than the sum of its proper divisors (1).

47904789479 is an equidigital number, since it uses as much as digits as its factorization.

47904789479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128024064, while the sum is 68.

The spelling of 47904789479 in words is "forty-seven billion, nine hundred four million, seven hundred eighty-nine thousand, four hundred seventy-nine".