12899450880 has 360 divisors, whose sum is σ = 46437059592. Its totient is φ = 3439853568.

The previous prime is 12899450867. The next prime is 12899450903. The reversal of 12899450880 is 8805499821.

It is a Jordan-Polya number, since it can be written as 6! ⋅ (4!)³ ⋅ (3!)⁴.

12899450880 is a `hidden beast` number, since 1 + 28 + 99 + 450 + 8 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (360).

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

It is a nialpdrome in base 6.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2579890174 + ... + 2579890178.

Almost surely, 2^12899450880 is an apocalyptic number.

12899450880 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 12899450880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23218529796).

12899450880 is an abundant number, since it is smaller than the sum of its proper divisors (33537608712).

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

12899450880 is an frugal number, since it uses more digits than its factorization.

12899450880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66 (or 10 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 54.

12899450880 divided by its product of nonzero digits (1658880) gives a 5-th power (7776 = 6⁵).

The spelling of 12899450880 in words is "twelve billion, eight hundred ninety-nine million, four hundred fifty thousand, eight hundred eighty".