13245707944778 has 32 divisors (see below), whose sum is σ = 20714986676736. Its totient is φ = 6346545162048.

The previous prime is 13245707944741. The next prime is 13245707944801. The reversal of 13245707944778 is 87744970754231.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 243401900 + ... + 243456312.

It is an arithmetic number, because the mean of its divisors is an integer number (647343333648).

Almost surely, 2^{13245707944778} is an apocalyptic number.

13245707944778 is a deficient number, since it is larger than the sum of its proper divisors (7469278731958).

13245707944778 is a wasteful number, since it uses less digits than its factorization.

13245707944778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107918.

The product of its (nonzero) digits is 331914240, while the sum is 68.

The spelling of 13245707944778 in words is "thirteen trillion, two hundred forty-five billion, seven hundred seven million, nine hundred forty-four thousand, seven hundred seventy-eight".