1299453607680 has 144 divisors (see below), whose sum is σ = 4188917545344. Its totient is φ = 343282339840.

The previous prime is 1299453607657. The next prime is 1299453607693. The reversal of 1299453607680 is 867063549921.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1170426 + ... + 1992185.

It is an arithmetic number, because the mean of its divisors is an integer number (29089705176).

It is a 1-persistent number, because it is pandigital, but 2⋅1299453607680 = 2598907215360 is not.

Almost surely, 2^{1299453607680} is an apocalyptic number.

1299453607680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1299453607680 is an abundant number, since it is smaller than the sum of its proper divisors (2889463937664).

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

1299453607680 is a wasteful number, since it uses less digits than its factorization.

1299453607680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3162742 (or 3162728 counting only the distinct ones).

The product of its (nonzero) digits is 19595520, while the sum is 60.

The spelling of 1299453607680 in words is "one trillion, two hundred ninety-nine billion, four hundred fifty-three million, six hundred seven thousand, six hundred eighty".