623612015644 has 12 divisors (see below), whose sum is σ = 1102571760304. Its totient is φ = 308591512704.

The previous prime is 623612015639. The next prime is 623612015647. The reversal of 623612015644 is 446510216326.

It is a junction number, because it is equal to n+sod(n) for n = 623612015597 and 623612015606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623612015647) 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, 803623344 + ... + 803624119.

Almost surely, 2^623612015644 is an apocalyptic number.

It is an amenable number.

623612015644 is a deficient number, since it is larger than the sum of its proper divisors (478959744660).

623612015644 is a wasteful number, since it uses less digits than its factorization.

623612015644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1607247564 (or 1607247562 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 40.

The spelling of 623612015644 in words is "six hundred twenty-three billion, six hundred twelve million, fifteen thousand, six hundred forty-four".