13578627586661 has 8 divisors (see below), whose sum is σ = 14225851532544. Its totient is φ = 12944478872160.

The previous prime is 13578627586609. The next prime is 13578627586709. The reversal of 13578627586661 is 16668572687531.

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

It is a cyclic number.

It is not a de Polignac number, because 13578627586661 - 2⁶ = 13578627586597 is a prime.

It is a super-2 number, since 2×13578627586661² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13578627516661) 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 7 ways as a sum of consecutive naturals, for example, 3268805720 + ... + 3268809873.

It is an arithmetic number, because the mean of its divisors is an integer number (1778231441568).

Almost surely, 2^{13578627586661} is an apocalyptic number.

It is an amenable number.

13578627586661 is a deficient number, since it is larger than the sum of its proper divisors (647223945883).

13578627586661 is an equidigital number, since it uses as much as digits as its factorization.

13578627586661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6537615691.

The product of its digits is 609638400, while the sum is 71.

The spelling of 13578627586661 in words is "thirteen trillion, five hundred seventy-eight billion, six hundred twenty-seven million, five hundred eighty-six thousand, six hundred sixty-one".