642044846024 has 16 divisors (see below), whose sum is σ = 1204339297920. Its totient is φ = 320887699920.

The previous prime is 642044845999. The next prime is 642044846029. The reversal of 642044846024 is 420648440246.

It is not an unprimeable number, because it can be changed into a prime (642044846029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16820132 + ... + 16858259.

It is an arithmetic number, because the mean of its divisors is an integer number (75271206120).

Almost surely, 2^642044846024 is an apocalyptic number.

It is an amenable number.

642044846024 is a deficient number, since it is larger than the sum of its proper divisors (562294451896).

642044846024 is a wasteful number, since it uses less digits than its factorization.

642044846024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33680780 (or 33680776 counting only the distinct ones).

The product of its (nonzero) digits is 1179648, while the sum is 44.

The spelling of 642044846024 in words is "six hundred forty-two billion, forty-four million, eight hundred forty-six thousand, twenty-four".