1299992535552 has 40 divisors (see below), whose sum is σ = 3463261368336. Its totient is φ = 433330844672.

The previous prime is 1299992535529. The next prime is 1299992535563. The reversal of 1299992535552 is 2555352999921.

It is a happy 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 3 ways as a sum of consecutive naturals, for example, 423173118 + ... + 423176189.

Almost surely, 2^{1299992535552} is an apocalyptic number.

1299992535552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1299992535552 is an abundant number, since it is smaller than the sum of its proper divisors (2163268832784).

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

1299992535552 is an frugal number, since it uses more digits than its factorization.

1299992535552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846349328 (or 846349312 counting only the distinct ones).

The product of its digits is 98415000, while the sum is 66.

The spelling of 1299992535552 in words is "one trillion, two hundred ninety-nine billion, nine hundred ninety-two million, five hundred thirty-five thousand, five hundred fifty-two".