642634054235 has 8 divisors (see below), whose sum is σ = 771556546800. Its totient is φ = 513843455584.

The previous prime is 642634054193. The next prime is 642634054253. The reversal of 642634054235 is 532450436246.

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

It is a cyclic number.

It is not a de Polignac number, because 642634054235 - 2⁶ = 642634054171 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32962757 + ... + 32982246.

It is an arithmetic number, because the mean of its divisors is an integer number (96444568350).

Almost surely, 2^642634054235 is an apocalyptic number.

642634054235 is a deficient number, since it is larger than the sum of its proper divisors (128922492565).

642634054235 is a wasteful number, since it uses less digits than its factorization.

642634054235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65946957.

The product of its (nonzero) digits is 2073600, while the sum is 44.

The spelling of 642634054235 in words is "six hundred forty-two billion, six hundred thirty-four million, fifty-four thousand, two hundred thirty-five".