57139347742 has 4 divisors (see below), whose sum is σ = 85709021616. Its totient is φ = 28569673870.

The previous prime is 57139347721. The next prime is 57139347781. The reversal of 57139347742 is 24774393175.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 57139347742.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14284836934 + ... + 14284836937.

It is an arithmetic number, because the mean of its divisors is an integer number (21427255404).

Almost surely, 2^57139347742 is an apocalyptic number.

57139347742 is a deficient number, since it is larger than the sum of its proper divisors (28569673874).

57139347742 is a wasteful number, since it uses less digits than its factorization.

57139347742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28569673873.

The product of its digits is 4445280, while the sum is 52.

The spelling of 57139347742 in words is "fifty-seven billion, one hundred thirty-nine million, three hundred forty-seven thousand, seven hundred forty-two".