623404404326 has 16 divisors (see below), whose sum is σ = 1021105778688. Its totient is φ = 283090782600.

The previous prime is 623404404323. The next prime is 623404404349.

623404404326 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 623404404326.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623404404323) 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, 13719590 + ... + 13764953.

It is an arithmetic number, because the mean of its divisors is an integer number (63819111168).

Almost surely, 2^623404404326 is an apocalyptic number.

623404404326 is a deficient number, since it is larger than the sum of its proper divisors (397701374362).

623404404326 is a wasteful number, since it uses less digits than its factorization.

623404404326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27485587.

The product of its (nonzero) digits is 331776, while the sum is 38.

The spelling of 623404404326 in words is "six hundred twenty-three billion, four hundred four million, four hundred four thousand, three hundred twenty-six".