626316434623 has 4 divisors (see below), whose sum is σ = 683254292328. Its totient is φ = 569378576920.

The previous prime is 626316434593. The next prime is 626316434647. The reversal of 626316434623 is 326434613626.

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 626316434623 - 2¹³ = 626316426431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (626316434693) 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, 28468928836 + ... + 28468928857.

It is an arithmetic number, because the mean of its divisors is an integer number (170813573082).

Almost surely, 2^626316434623 is an apocalyptic number.

626316434623 is a deficient number, since it is larger than the sum of its proper divisors (56937857705).

626316434623 is a wasteful number, since it uses less digits than its factorization.

626316434623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56937857704.

The product of its digits is 2239488, while the sum is 46.

The spelling of 626316434623 in words is "six hundred twenty-six billion, three hundred sixteen million, four hundred thirty-four thousand, six hundred twenty-three".