47913474779 has 2 divisors, whose sum is σ = 47913474780. Its totient is φ = 47913474778.

The previous prime is 47913474773. The next prime is 47913474797. The reversal of 47913474779 is 97747431974.

Together with next prime (47913474797) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47913474779 is a prime.

It is not a weakly prime, because it can be changed into another prime (47913474773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23956737389 + 23956737390.

It is an arithmetic number, because the mean of its divisors is an integer number (23956737390).

Almost surely, 2^47913474779 is an apocalyptic number.

47913474779 is a deficient number, since it is larger than the sum of its proper divisors (1).

47913474779 is an equidigital number, since it uses as much as digits as its factorization.

47913474779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37340352, while the sum is 62.

The spelling of 47913474779 in words is "forty-seven billion, nine hundred thirteen million, four hundred seventy-four thousand, seven hundred seventy-nine".