642151096694 has 8 divisors (see below), whose sum is σ = 963239202840. Its totient is φ = 321071362416.

The previous prime is 642151096693. The next prime is 642151096753. The reversal of 642151096694 is 496690151246.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (642151096693) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1897559 + ... + 2210210.

It is an arithmetic number, because the mean of its divisors is an integer number (120404900355).

Almost surely, 2^642151096694 is an apocalyptic number.

642151096694 is a deficient number, since it is larger than the sum of its proper divisors (321088106146).

642151096694 is a wasteful number, since it uses less digits than its factorization.

642151096694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4185934.

The product of its (nonzero) digits is 2799360, while the sum is 53.

The spelling of 642151096694 in words is "six hundred forty-two billion, one hundred fifty-one million, ninety-six thousand, six hundred ninety-four".