642314534663511 has 24 divisors (see below), whose sum is σ = 1008913768287984. Its totient is φ = 392128428153600.

The previous prime is 642314534663447. The next prime is 642314534663519. The reversal of 642314534663511 is 115366435413246.

642314534663511 is a `hidden beast` number, since 6 + 4 + 2 + 3 + 1 + 4 + 534 + 66 + 35 + 11 = 666.

It is not a de Polignac number, because 642314534663511 - 2⁶ = 642314534663447 is a prime.

It is a super-2 number, since 2×642314534663511² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (642314534663519) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56731537765 + ... + 56731549086.

It is an arithmetic number, because the mean of its divisors is an integer number (42038073678666).

Almost surely, 2^{642314534663511} is an apocalyptic number.

642314534663511 is a deficient number, since it is larger than the sum of its proper divisors (366599233624473).

642314534663511 is a wasteful number, since it uses less digits than its factorization.

642314534663511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113463086911 (or 113463086908 counting only the distinct ones).

The product of its digits is 18662400, while the sum is 54.

The spelling of 642314534663511 in words is "six hundred forty-two trillion, three hundred fourteen billion, five hundred thirty-four million, six hundred sixty-three thousand, five hundred eleven".