14639956380 has 432 divisors, whose sum is σ = 54774720000. Its totient is φ = 3147040512.

The previous prime is 14639956333. The next prime is 14639956403. The reversal of 14639956380 is 8365993641.

14639956380 is a `hidden beast` number, since 1 + 46 + 39 + 9 + 563 + 8 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 33348201 + ... + 33348639.

Almost surely, 2^14639956380 is an apocalyptic number.

14639956380 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 14639956380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27387360000).

14639956380 is an abundant number, since it is smaller than the sum of its proper divisors (40134763620).

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

14639956380 is a wasteful number, since it uses less digits than its factorization.

14639956380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686 (or 674 counting only the distinct ones).

The product of its (nonzero) digits is 4199040, while the sum is 54.

The spelling of 14639956380 in words is "fourteen billion, six hundred thirty-nine million, nine hundred fifty-six thousand, three hundred eighty".