642910599111 has 8 divisors (see below), whose sum is σ = 935142689664. Its totient is φ = 389642787320.

The previous prime is 642910599101. The next prime is 642910599113. The reversal of 642910599111 is 111995019246.

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 642910599111 - 2²⁷ = 642776381383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (642910599113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9741069651 + ... + 9741069716.

It is an arithmetic number, because the mean of its divisors is an integer number (116892836208).

Almost surely, 2^642910599111 is an apocalyptic number.

642910599111 is a deficient number, since it is larger than the sum of its proper divisors (292232090553).

642910599111 is a wasteful number, since it uses less digits than its factorization.

642910599111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19482139381.

The product of its (nonzero) digits is 174960, while the sum is 48.

The spelling of 642910599111 in words is "six hundred forty-two billion, nine hundred ten million, five hundred ninety-nine thousand, one hundred eleven".