642611014223 has 4 divisors (see below), whose sum is σ = 642635774088. Its totient is φ = 642586254360.

The previous prime is 642611014217. The next prime is 642611014247. The reversal of 642611014223 is 322410116246.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 642611014223 - 2⁴ = 642611014207 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 642611014223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (642611014273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12340961 + ... + 12392922.

It is an arithmetic number, because the mean of its divisors is an integer number (160658943522).

Almost surely, 2^642611014223 is an apocalyptic number.

642611014223 is a deficient number, since it is larger than the sum of its proper divisors (24759865).

642611014223 is a wasteful number, since it uses less digits than its factorization.

642611014223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24759864.

The product of its (nonzero) digits is 13824, while the sum is 32.

The spelling of 642611014223 in words is "six hundred forty-two billion, six hundred eleven million, fourteen thousand, two hundred twenty-three".