47108778820 has 48 divisors (see below), whose sum is σ = 99448675200. Its totient is φ = 18744562944.

The previous prime is 47108778793. The next prime is 47108778823. The reversal of 47108778820 is 2887780174.

It is not an unprimeable number, because it can be changed into a prime (47108778823) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6347752 + ... + 6355168.

It is an arithmetic number, because the mean of its divisors is an integer number (2071847400).

Almost surely, 2^47108778820 is an apocalyptic number.

It is an amenable number.

47108778820 is an abundant number, since it is smaller than the sum of its proper divisors (52339896380).

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

47108778820 is a wasteful number, since it uses less digits than its factorization.

47108778820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9052 (or 9050 counting only the distinct ones).

The product of its (nonzero) digits is 1404928, while the sum is 52.

The spelling of 47108778820 in words is "forty-seven billion, one hundred eight million, seven hundred seventy-eight thousand, eight hundred twenty".