47897053728 has 24 divisors (see below), whose sum is σ = 125729766288. Its totient is φ = 15965684544.

The previous prime is 47897053651. The next prime is 47897053817. The reversal of 47897053728 is 82735079874.

It is a tau number, because it is divible by the number of its divisors (24).

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, 249463726 + ... + 249463917.

It is an arithmetic number, because the mean of its divisors is an integer number (5238740262).

Almost surely, 2^47897053728 is an apocalyptic number.

47897053728 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

47897053728 is an abundant number, since it is smaller than the sum of its proper divisors (77832712560).

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

47897053728 is a wasteful number, since it uses less digits than its factorization.

47897053728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498927656 (or 498927648 counting only the distinct ones).

The product of its (nonzero) digits is 23708160, while the sum is 60.

The spelling of 47897053728 in words is "forty-seven billion, eight hundred ninety-seven million, fifty-three thousand, seven hundred twenty-eight".