623996428149 has 24 divisors (see below), whose sum is σ = 951351789440. Its totient is φ = 393029117568.

The previous prime is 623996428141. The next prime is 623996428229. The reversal of 623996428149 is 941824699326.

623996428149 is a `hidden beast` number, since 62 + 3 + 9 + 9 + 6 + 428 + 149 = 666.

It is not a de Polignac number, because 623996428149 - 2³ = 623996428141 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 (623996428141) 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, 4908772 + ... + 5034285.

Almost surely, 2^623996428149 is an apocalyptic number.

It is an amenable number.

623996428149 is a deficient number, since it is larger than the sum of its proper divisors (327355361291).

623996428149 is a wasteful number, since it uses less digits than its factorization.

623996428149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9943449 (or 9943446 counting only the distinct ones).

The product of its digits is 40310784, while the sum is 63.

The spelling of 623996428149 in words is "six hundred twenty-three billion, nine hundred ninety-six million, four hundred twenty-eight thousand, one hundred forty-nine".