57147388542 has 64 divisors (see below), whose sum is σ = 129478901760. Its totient is φ = 18676917792.

The previous prime is 57147388537. The next prime is 57147388549. The reversal of 57147388542 is 24588374175.

57147388542 is a `hidden beast` number, since 5 + 7 + 14 + 7 + 3 + 88 + 542 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57147388549) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4753503 + ... + 4765509.

It is an arithmetic number, because the mean of its divisors is an integer number (2023107840).

Almost surely, 2^57147388542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57147388542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64739450880).

57147388542 is an abundant number, since it is smaller than the sum of its proper divisors (72331513218).

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

57147388542 is a wasteful number, since it uses less digits than its factorization.

57147388542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13734 (or 13728 counting only the distinct ones).

The product of its digits is 7526400, while the sum is 54.

The spelling of 57147388542 in words is "fifty-seven billion, one hundred forty-seven million, three hundred eighty-eight thousand, five hundred forty-two".