1298365309136 has 20 divisors (see below), whose sum is σ = 2874951756192. Its totient is φ = 556442275296.

The previous prime is 1298365309097. The next prime is 1298365309159. The reversal of 1298365309136 is 6319035638921.

It is a happy number.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5796273590 + ... + 5796273813.

Almost surely, 2^{1298365309136} is an apocalyptic number.

1298365309136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1298365309136 is an abundant number, since it is smaller than the sum of its proper divisors (1576586447056).

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

1298365309136 is a wasteful number, since it uses less digits than its factorization.

1298365309136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11592547418 (or 11592547412 counting only the distinct ones).

The product of its (nonzero) digits is 6298560, while the sum is 56.

The spelling of 1298365309136 in words is "one trillion, two hundred ninety-eight billion, three hundred sixty-five million, three hundred nine thousand, one hundred thirty-six".