642248622088 has 16 divisors (see below), whose sum is σ = 1204307793360. Its totient is φ = 321099877200.

The previous prime is 642248622073. The next prime is 642248622107. The reversal of 642248622088 is 880226842246.

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, 2942278 + ... + 3153013.

It is an arithmetic number, because the mean of its divisors is an integer number (75269237085).

Almost surely, 2^642248622088 is an apocalyptic number.

It is an amenable number.

642248622088 is a deficient number, since it is larger than the sum of its proper divisors (562059171272).

642248622088 is a wasteful number, since it uses less digits than its factorization.

642248622088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6108468 (or 6108464 counting only the distinct ones).

The product of its (nonzero) digits is 4718592, while the sum is 52.

The spelling of 642248622088 in words is "six hundred forty-two billion, two hundred forty-eight million, six hundred twenty-two thousand, eighty-eight".