42757840830 has 32 divisors (see below), whose sum is σ = 102633568128. Its totient is φ = 11400452000.

The previous prime is 42757840799. The next prime is 42757840883. The reversal of 42757840830 is 3804875724.

It is a self number, because there is not a number n which added to its sum of digits gives 42757840830.

It is a congruent number.

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, 117505 + ... + 315155.

It is an arithmetic number, because the mean of its divisors is an integer number (3207299004).

Almost surely, 2^42757840830 is an apocalyptic number.

42757840830 is an abundant number, since it is smaller than the sum of its proper divisors (59875727298).

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

42757840830 is a wasteful number, since it uses less digits than its factorization.

42757840830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204872.

The product of its (nonzero) digits is 1505280, while the sum is 48.

The spelling of 42757840830 in words is "forty-two billion, seven hundred fifty-seven million, eight hundred forty thousand, eight hundred thirty".