13003597178881 has 4 divisors (see below), whose sum is σ = 13015450960452. Its totient is φ = 12991743397312.

The previous prime is 13003597178857. The next prime is 13003597178927. The reversal of 13003597178881 is 18887179530031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9744792372225 + 3258804806656 = 3121665^2 + 1805216^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13003597178881 is a prime.

It is a super-2 number, since 2×13003597178881² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13003597128881) by changing a digit.

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, 5926889140 + ... + 5926891333.

It is an arithmetic number, because the mean of its divisors is an integer number (3253862740113).

Almost surely, 2^{13003597178881} is an apocalyptic number.

It is an amenable number.

13003597178881 is a deficient number, since it is larger than the sum of its proper divisors (11853781571).

13003597178881 is a wasteful number, since it uses less digits than its factorization.

13003597178881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11853781570.

The product of its (nonzero) digits is 10160640, while the sum is 61.

The spelling of 13003597178881 in words is "thirteen trillion, three billion, five hundred ninety-seven million, one hundred seventy-eight thousand, eight hundred eighty-one".