13669633639 has 2 divisors, whose sum is σ = 13669633640. Its totient is φ = 13669633638.

The previous prime is 13669633597. The next prime is 13669633673. The reversal of 13669633639 is 93633696631.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13669633639 - 2¹⁵ = 13669600871 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13669633639.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13669633339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6834816819 + 6834816820.

It is an arithmetic number, because the mean of its divisors is an integer number (6834816820).

Almost surely, 2^13669633639 is an apocalyptic number.

13669633639 is a deficient number, since it is larger than the sum of its proper divisors (1).

13669633639 is an equidigital number, since it uses as much as digits as its factorization.

13669633639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8503056, while the sum is 55.

The spelling of 13669633639 in words is "thirteen billion, six hundred sixty-nine million, six hundred thirty-three thousand, six hundred thirty-nine".