1299372398268 has 96 divisors (see below), whose sum is σ = 3487545352704. Its totient is φ = 368840694528.

The previous prime is 1299372398257. The next prime is 1299372398281. The reversal of 1299372398268 is 8628932739921.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7993530 + ... + 8154462.

It is an arithmetic number, because the mean of its divisors is an integer number (36328597424).

Almost surely, 2^{1299372398268} is an apocalyptic number.

It is an amenable number.

1299372398268 is an abundant number, since it is smaller than the sum of its proper divisors (2188172954436).

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

1299372398268 is a wasteful number, since it uses less digits than its factorization.

1299372398268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161571 (or 161569 counting only the distinct ones).

The product of its digits is 141087744, while the sum is 69.

The spelling of 1299372398268 in words is "one trillion, two hundred ninety-nine billion, three hundred seventy-two million, three hundred ninety-eight thousand, two hundred sixty-eight".