57242742447306 has 32 divisors (see below), whose sum is σ = 126159317887680. Its totient is φ = 17203543346304.

The previous prime is 57242742447271. The next prime is 57242742447347. The reversal of 57242742447306 is 60374424724275.

It is a happy number.

It is a super-3 number, since 3×57242742447306³ (a number of 42 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8533500291 + ... + 8533506998.

It is an arithmetic number, because the mean of its divisors is an integer number (3942478683990).

Almost surely, 2^{57242742447306} is an apocalyptic number.

57242742447306 is an abundant number, since it is smaller than the sum of its proper divisors (68916575440374).

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

57242742447306 is a wasteful number, since it uses less digits than its factorization.

57242742447306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17067007350.

The product of its (nonzero) digits is 63221760, while the sum is 57.

The spelling of 57242742447306 in words is "fifty-seven trillion, two hundred forty-two billion, seven hundred forty-two million, four hundred forty-seven thousand, three hundred six".