47991895368 has 16 divisors (see below), whose sum is σ = 119979738480. Its totient is φ = 15997298448.

The previous prime is 47991895321. The next prime is 47991895387. The reversal of 47991895368 is 86359819974.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 999831130 + ... + 999831177.

It is an arithmetic number, because the mean of its divisors is an integer number (7498733655).

Almost surely, 2^47991895368 is an apocalyptic number.

It is an amenable number.

47991895368 is an abundant number, since it is smaller than the sum of its proper divisors (71987843112).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47991895368 is a wasteful number, since it uses less digits than its factorization.

47991895368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1999662316 (or 1999662312 counting only the distinct ones).

The product of its digits is 117573120, while the sum is 69.

The spelling of 47991895368 in words is "forty-seven billion, nine hundred ninety-one million, eight hundred ninety-five thousand, three hundred sixty-eight".