642194279314 has 64 divisors (see below), whose sum is σ = 1141488451584. Its totient is φ = 265437810000.

The previous prime is 642194279261. The next prime is 642194279329. The reversal of 642194279314 is 413972491246.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 129707539 + ... + 129712489.

It is an arithmetic number, because the mean of its divisors is an integer number (17835757056).

Almost surely, 2^642194279314 is an apocalyptic number.

642194279314 is a deficient number, since it is larger than the sum of its proper divisors (499294172270).

642194279314 is an equidigital number, since it uses as much as digits as its factorization.

642194279314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5364 (or 5302 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 52.

The spelling of 642194279314 in words is "six hundred forty-two billion, one hundred ninety-four million, two hundred seventy-nine thousand, three hundred fourteen".