12799299840 has 288 divisors, whose sum is σ = 44425113600. Its totient is φ = 3128647680.

The previous prime is 12799299839. The next prime is 12799299853. The reversal of 12799299840 is 4899299721.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2258931 + ... + 2264589.

Almost surely, 2^12799299840 is an apocalyptic number.

12799299840 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 12799299840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22212556800).

12799299840 is an abundant number, since it is smaller than the sum of its proper divisors (31625813760).

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

12799299840 is a wasteful number, since it uses less digits than its factorization.

12799299840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5733 (or 5719 counting only the distinct ones).

The product of its (nonzero) digits is 5878656, while the sum is 60.

The spelling of 12799299840 in words is "twelve billion, seven hundred ninety-nine million, two hundred ninety-nine thousand, eight hundred forty".