623839971289080 has 128 divisors (see below), whose sum is σ = 2303409124800000. Its totient is φ = 131623378555392.

The previous prime is 623839971289049. The next prime is 623839971289081. The reversal of 623839971289080 is 80982179938326.

It is a junction number, because it is equal to n+sod(n) for n = 623839971288993 and 623839971289011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623839971289081) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28564090330 + ... + 28564112169.

It is an arithmetic number, because the mean of its divisors is an integer number (17995383787500).

Almost surely, 2^{623839971289080} is an apocalyptic number.

623839971289080 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

623839971289080 is an abundant number, since it is smaller than the sum of its proper divisors (1679569153510920).

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

623839971289080 is a wasteful number, since it uses less digits than its factorization.

623839971289080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57128202533 (or 57128202529 counting only the distinct ones).

The product of its (nonzero) digits is 564350976, while the sum is 75.

The spelling of 623839971289080 in words is "six hundred twenty-three trillion, eight hundred thirty-nine billion, nine hundred seventy-one million, two hundred eighty-nine thousand, eighty".