642199900174 has 16 divisors (see below), whose sum is σ = 1158856963200. Its totient is φ = 260742816504.

The previous prime is 642199900103. The next prime is 642199900201. The reversal of 642199900174 is 471009991246.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1207142404 + ... + 1207142935.

It is an arithmetic number, because the mean of its divisors is an integer number (72428560200).

Almost surely, 2^642199900174 is an apocalyptic number.

642199900174 is a deficient number, since it is larger than the sum of its proper divisors (516657063026).

642199900174 is a wasteful number, since it uses less digits than its factorization.

642199900174 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2414285367.

The product of its (nonzero) digits is 979776, while the sum is 52.

The spelling of 642199900174 in words is "six hundred forty-two billion, one hundred ninety-nine million, nine hundred thousand, one hundred seventy-four".