12799088640 has 480 divisors, whose sum is σ = 49446437040. Its totient is φ = 3147890688.

The previous prime is 12799088633. The next prime is 12799088651. The reversal of 12799088640 is 4688099721.

It is a tau number, because it is divible by the number of its divisors (480).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 10782127 + ... + 10783313.

Almost surely, 2^12799088640 is an apocalyptic number.

12799088640 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 12799088640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24723218520).

12799088640 is an abundant number, since it is smaller than the sum of its proper divisors (36647348400).

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

12799088640 is a wasteful number, since it uses less digits than its factorization.

12799088640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1239 (or 1210 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The spelling of 12799088640 in words is "twelve billion, seven hundred ninety-nine million, eighty-eight thousand, six hundred forty".