47398385520 has 80 divisors (see below), whose sum is σ = 163261113120. Its totient is φ = 12639568896.

The previous prime is 47398385501. The next prime is 47398385561. The reversal of 47398385520 is 2558389374.

47398385520 is a `hidden beast` number, since 4 + 7 + 3 + 9 + 83 + 8 + 552 + 0 = 666.

47398385520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10969689 + ... + 10974008.

It is an arithmetic number, because the mean of its divisors is an integer number (2040763914).

Almost surely, 2^47398385520 is an apocalyptic number.

47398385520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47398385520 is an abundant number, since it is smaller than the sum of its proper divisors (115862727600).

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

47398385520 is a wasteful number, since it uses less digits than its factorization.

47398385520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21943719 (or 21943707 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 54.

The spelling of 47398385520 in words is "forty-seven billion, three hundred ninety-eight million, three hundred eighty-five thousand, five hundred twenty".