642676038622 has 8 divisors (see below), whose sum is σ = 964900918656. Its totient is φ = 321042399072.

The previous prime is 642676038611. The next prime is 642676038659. The reversal of 642676038622 is 226830676246.

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

It is a self number, because there is not a number n which added to its sum of digits gives 642676038622.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147807403 + ... + 147811750.

It is an arithmetic number, because the mean of its divisors is an integer number (120612614832).

Almost surely, 2^642676038622 is an apocalyptic number.

642676038622 is a deficient number, since it is larger than the sum of its proper divisors (322224880034).

642676038622 is a wasteful number, since it uses less digits than its factorization.

642676038622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295620242.

The product of its (nonzero) digits is 6967296, while the sum is 52.

The spelling of 642676038622 in words is "six hundred forty-two billion, six hundred seventy-six million, thirty-eight thousand, six hundred twenty-two".