13002776663875 has 16 divisors (see below), whose sum is σ = 16227961974432. Its totient is φ = 10401902935200.

The previous prime is 13002776663777. The next prime is 13002776663893. The reversal of 13002776663875 is 57836667720031.

It is a happy number.

It is not a de Polignac number, because 13002776663875 - 2¹¹ = 13002776661827 is a prime.

It is a super-2 number, since 2×13002776663875² (a number of 27 digits) contains 22 as substring.

It is a Duffinian 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, 2551152 + ... + 5702098.

It is an arithmetic number, because the mean of its divisors is an integer number (1014247623402).

Almost surely, 2^{13002776663875} is an apocalyptic number.

13002776663875 is a deficient number, since it is larger than the sum of its proper divisors (3225185310557).

13002776663875 is an equidigital number, since it uses as much as digits as its factorization.

13002776663875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3183975 (or 3183965 counting only the distinct ones).

The product of its (nonzero) digits is 53343360, while the sum is 61.

The spelling of 13002776663875 in words is "thirteen trillion, two billion, seven hundred seventy-six million, six hundred sixty-three thousand, eight hundred seventy-five".