642426204200 has 48 divisors (see below), whose sum is σ = 1629426468960. Its totient is φ = 233609528000.

The previous prime is 642426204151. The next prime is 642426204229. The reversal of 642426204200 is 2402624246.

It is a super-2 number, since 2×642426204200² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 146003756 + ... + 146008155.

It is an arithmetic number, because the mean of its divisors is an integer number (33946384770).

Almost surely, 2^642426204200 is an apocalyptic number.

It is an amenable number.

642426204200 is an abundant number, since it is smaller than the sum of its proper divisors (987000264760).

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

642426204200 is a wasteful number, since it uses less digits than its factorization.

642426204200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292011938 (or 292011929 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 642426204200 its reverse (2402624246), we get a palindrome (644828828446).

The spelling of 642426204200 in words is "six hundred forty-two billion, four hundred twenty-six million, two hundred four thousand, two hundred".