13964656497 has 16 divisors (see below), whose sum is σ = 20744404992. Its totient is φ = 8283354320.

The previous prime is 13964656481. The next prime is 13964656529. The reversal of 13964656497 is 79465646931.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 13964656497 - 2⁴ = 13964656481 is a prime.

It is a super-2 number, since 2×13964656497² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13964656497.

It is not an unprimeable number, because it can be changed into a prime (13964656417) 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 15 ways as a sum of consecutive naturals, for example, 4500273 + ... + 4503374.

It is an arithmetic number, because the mean of its divisors is an integer number (1296525312).

Almost surely, 2^13964656497 is an apocalyptic number.

It is an amenable number.

13964656497 is a deficient number, since it is larger than the sum of its proper divisors (6779748495).

13964656497 is a wasteful number, since it uses less digits than its factorization.

13964656497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9003708.

The product of its digits is 29393280, while the sum is 60.

The spelling of 13964656497 in words is "thirteen billion, nine hundred sixty-four million, six hundred fifty-six thousand, four hundred ninety-seven".