1298393281185 has 288 divisors, whose sum is σ = 2887116503040. Its totient is φ = 493467448320.

The previous prime is 1298393281109. The next prime is 1298393281243. The reversal of 1298393281185 is 5811823938921.

It is not a de Polignac number, because 1298393281185 - 2⁷ = 1298393281057 is a prime.

It is a super-2 number, since 2×1298393281185² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 126015744 + ... + 126026046.

It is an arithmetic number, because the mean of its divisors is an integer number (10024710080).

Almost surely, 2^{1298393281185} is an apocalyptic number.

1298393281185 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1298393281185 is an abundant number, since it is smaller than the sum of its proper divisors (1588723221855).

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

1298393281185 is a wasteful number, since it uses less digits than its factorization.

1298393281185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10469 (or 10451 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 60.

The spelling of 1298393281185 in words is "one trillion, two hundred ninety-eight billion, three hundred ninety-three million, two hundred eighty-one thousand, one hundred eighty-five".