642580723063 has 8 divisors (see below), whose sum is σ = 644290202160. Its totient is φ = 640873470720.

The previous prime is 642580723021. The next prime is 642580723067. The reversal of 642580723063 is 360327085246.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 642580723063 - 2²⁵ = 642547168631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (642580723067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22023 + ... + 1133863.

It is an arithmetic number, because the mean of its divisors is an integer number (80536275270).

Almost surely, 2^642580723063 is an apocalyptic number.

642580723063 is a deficient number, since it is larger than the sum of its proper divisors (1709479097).

642580723063 is a wasteful number, since it uses less digits than its factorization.

642580723063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1113377.

The product of its (nonzero) digits is 1451520, while the sum is 46.

The spelling of 642580723063 in words is "six hundred forty-two billion, five hundred eighty million, seven hundred twenty-three thousand, sixty-three".