13081999898400 has 72 divisors (see below), whose sum is σ = 42581909677104. Its totient is φ = 3488533305600.

The previous prime is 13081999898393. The next prime is 13081999898483. The reversal of 13081999898400 is 489899918031.

It is a super-2 number, since 2×13081999898400² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2725414246 + ... + 2725419045.

It is an arithmetic number, because the mean of its divisors is an integer number (591415412182).

Almost surely, 2^{13081999898400} is an apocalyptic number.

13081999898400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13081999898400 is an abundant number, since it is smaller than the sum of its proper divisors (29499909778704).

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

13081999898400 is a wasteful number, since it uses less digits than its factorization.

13081999898400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5450833314 (or 5450833301 counting only the distinct ones).

The product of its (nonzero) digits is 40310784, while the sum is 69.

The spelling of 13081999898400 in words is "thirteen trillion, eighty-one billion, nine hundred ninety-nine million, eight hundred ninety-eight thousand, four hundred".