13626000394491 has 8 divisors (see below), whose sum is σ = 18173575255360. Its totient is φ = 9081212898312.

The previous prime is 13626000394463. The next prime is 13626000394547. The reversal of 13626000394491 is 19449300062631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13626000394491 - 2¹¹ = 13626000392443 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13626000394491.

It is not an unprimeable number, because it can be changed into a prime (13626000394691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 696829765 + ... + 696849318.

It is an arithmetic number, because the mean of its divisors is an integer number (2271696906920).

Almost surely, 2^{13626000394491} is an apocalyptic number.

13626000394491 is a deficient number, since it is larger than the sum of its proper divisors (4547574860869).

13626000394491 is a wasteful number, since it uses less digits than its factorization.

13626000394491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1393682345.

The product of its (nonzero) digits is 839808, while the sum is 48.

The spelling of 13626000394491 in words is "thirteen trillion, six hundred twenty-six billion, three hundred ninety-four thousand, four hundred ninety-one".