1329707972745 has 32 divisors (see below), whose sum is σ = 2363996682240. Its totient is φ = 709156166400.

The previous prime is 1329707972699. The next prime is 1329707972759. The reversal of 1329707972745 is 5472797079231.

1329707972745 is a `hidden beast` number, since 1 + 3 + 297 + 0 + 79 + 7 + 274 + 5 = 666.

It is not a de Polignac number, because 1329707972745 - 2¹³ = 1329707964553 is a prime.

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, 4993617 + ... + 5253153.

It is an arithmetic number, because the mean of its divisors is an integer number (73874896320).

Almost surely, 2^{1329707972745} is an apocalyptic number.

1329707972745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1329707972745 is a deficient number, since it is larger than the sum of its proper divisors (1034288709495).

1329707972745 is a wasteful number, since it uses less digits than its factorization.

1329707972745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297502 (or 297496 counting only the distinct ones).

The product of its (nonzero) digits is 46675440, while the sum is 63.

The spelling of 1329707972745 in words is "one trillion, three hundred twenty-nine billion, seven hundred seven million, nine hundred seventy-two thousand, seven hundred forty-five".