1299318725952 has 112 divisors (see below), whose sum is σ = 4113583929280. Its totient is φ = 399790370304.

The previous prime is 1299318725899. The next prime is 1299318726011. The reversal of 1299318725952 is 2595278139921.

1299318725952 is a `hidden beast` number, since 1 + 2 + 9 + 9 + 31 + 8 + 7 + 2 + 595 + 2 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1299318725952.

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 15 ways as a sum of consecutive naturals, for example, 28897558 + ... + 28942485.

It is an arithmetic number, because the mean of its divisors is an integer number (36728427940).

Almost surely, 2^{1299318725952} is an apocalyptic number.

1299318725952 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1299318725952 is an abundant number, since it is smaller than the sum of its proper divisors (2814265203328).

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

1299318725952 is a wasteful number, since it uses less digits than its factorization.

1299318725952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57840077 (or 57840061 counting only the distinct ones).

The product of its digits is 24494400, while the sum is 63.

The spelling of 1299318725952 in words is "one trillion, two hundred ninety-nine billion, three hundred eighteen million, seven hundred twenty-five thousand, nine hundred fifty-two".