57487891480 has 32 divisors (see below), whose sum is σ = 129480236640. Its totient is φ = 22971604480.

The previous prime is 57487891471. The next prime is 57487891561. The reversal of 57487891480 is 8419878475.

It is a congruent number.

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, 696436 + ... + 774595.

It is an arithmetic number, because the mean of its divisors is an integer number (4046257395).

Almost surely, 2^57487891480 is an apocalyptic number.

It is an amenable number.

57487891480 is an abundant number, since it is smaller than the sum of its proper divisors (71992345160).

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

57487891480 is a wasteful number, since it uses less digits than its factorization.

57487891480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1472019 (or 1472015 counting only the distinct ones).

The product of its (nonzero) digits is 18063360, while the sum is 61.

The spelling of 57487891480 in words is "fifty-seven billion, four hundred eighty-seven million, eight hundred ninety-one thousand, four hundred eighty".