123679088640 has 672 divisors, whose sum is σ = 463714917120. Its totient is φ = 30398742528.

The previous prime is 123679088629. The next prime is 123679088657. The reversal of 123679088640 is 46880976321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 245882629 + ... + 245883131.

It is an arithmetic number, because the mean of its divisors is an integer number (690051960).

Almost surely, 2^123679088640 is an apocalyptic number.

123679088640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123679088640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (231857458560).

123679088640 is an abundant number, since it is smaller than the sum of its proper divisors (340035828480).

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

123679088640 is a wasteful number, since it uses less digits than its factorization.

123679088640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592 (or 565 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The spelling of 123679088640 in words is "one hundred twenty-three billion, six hundred seventy-nine million, eighty-eight thousand, six hundred forty".