642830619242 has 32 divisors (see below), whose sum is σ = 1120828665600. Its totient is φ = 270828633600.

The previous prime is 642830619239. The next prime is 642830619307. The reversal of 642830619242 is 242916038246.

642830619242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 1386134 + ... + 1790817.

It is an arithmetic number, because the mean of its divisors is an integer number (35025895800).

Almost surely, 2^642830619242 is an apocalyptic number.

642830619242 is a deficient number, since it is larger than the sum of its proper divisors (477998046358).

642830619242 is a wasteful number, since it uses less digits than its factorization.

642830619242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3177206.

The product of its (nonzero) digits is 995328, while the sum is 47.

The spelling of 642830619242 in words is "six hundred forty-two billion, eight hundred thirty million, six hundred nineteen thousand, two hundred forty-two".