47918881951 has 2 divisors, whose sum is σ = 47918881952. Its totient is φ = 47918881950.

The previous prime is 47918881861. The next prime is 47918881963. The reversal of 47918881951 is 15918881974.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47918881951 - 2²⁵ = 47885327519 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47918881951.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47918881151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23959440975 + 23959440976.

It is an arithmetic number, because the mean of its divisors is an integer number (23959440976).

Almost surely, 2^47918881951 is an apocalyptic number.

47918881951 is a deficient number, since it is larger than the sum of its proper divisors (1).

47918881951 is an equidigital number, since it uses as much as digits as its factorization.

47918881951 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5806080, while the sum is 61.

The spelling of 47918881951 in words is "forty-seven billion, nine hundred eighteen million, eight hundred eighty-one thousand, nine hundred fifty-one".