57079874242 has 4 divisors (see below), whose sum is σ = 85619811366. Its totient is φ = 28539937120.

The previous prime is 57079874221. The next prime is 57079874251. The reversal of 57079874242 is 24247897075.

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

It can be written as a sum of positive squares in only one way, i.e., 56701610641 + 378263601 = 238121^2 + 19449^2 .

It is a super-3 number, since 3×57079874242³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14269968559 + ... + 14269968562.

Almost surely, 2^57079874242 is an apocalyptic number.

57079874242 is a deficient number, since it is larger than the sum of its proper divisors (28539937124).

57079874242 is a wasteful number, since it uses less digits than its factorization.

57079874242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28539937123.

The product of its (nonzero) digits is 7902720, while the sum is 55.

The spelling of 57079874242 in words is "fifty-seven billion, seventy-nine million, eight hundred seventy-four thousand, two hundred forty-two".