642652300898 has 8 divisors (see below), whose sum is σ = 975592649808. Its totient is φ = 317454750964.

The previous prime is 642652300889. The next prime is 642652300903. The reversal of 642652300898 is 898003256246.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1935699536 + ... + 1935699867.

It is an arithmetic number, because the mean of its divisors is an integer number (121949081226).

Almost surely, 2^642652300898 is an apocalyptic number.

642652300898 is a deficient number, since it is larger than the sum of its proper divisors (332940348910).

642652300898 is a wasteful number, since it uses less digits than its factorization.

642652300898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3871399488.

The product of its (nonzero) digits is 4976640, while the sum is 53.

The spelling of 642652300898 in words is "six hundred forty-two billion, six hundred fifty-two million, three hundred thousand, eight hundred ninety-eight".