47172153343820 has 24 divisors (see below), whose sum is σ = 99726364458000. Its totient is φ = 18742224683072.

The previous prime is 47172153343741. The next prime is 47172153343831. The reversal of 47172153343820 is 2834335127174.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7914787850 + ... + 7914793809.

It is an arithmetic number, because the mean of its divisors is an integer number (4155265185750).

Almost surely, 2^{47172153343820} is an apocalyptic number.

It is an amenable number.

47172153343820 is an abundant number, since it is smaller than the sum of its proper divisors (52554211114180).

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

47172153343820 is a wasteful number, since it uses less digits than its factorization.

47172153343820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15829581817 (or 15829581815 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 50.

The spelling of 47172153343820 in words is "forty-seven trillion, one hundred seventy-two billion, one hundred fifty-three million, three hundred forty-three thousand, eight hundred twenty".