623445544326 has 64 divisors (see below), whose sum is σ = 1414219274496. Its totient is φ = 181563993600.

The previous prime is 623445544307. The next prime is 623445544333.

623445544326 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1538055 + ... + 1900658.

It is an arithmetic number, because the mean of its divisors is an integer number (22097176164).

Almost surely, 2^623445544326 is an apocalyptic number.

623445544326 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

623445544326 is an abundant number, since it is smaller than the sum of its proper divisors (790773730170).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

623445544326 is a wasteful number, since it uses less digits than its factorization.

623445544326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3438837.

The product of its digits is 8294400, while the sum is 48.

The spelling of 623445544326 in words is "six hundred twenty-three billion, four hundred forty-five million, five hundred forty-four thousand, three hundred twenty-six".