13699973662545 has 16 divisors (see below), whose sum is σ = 22010912047872. Its totient is φ = 7276334557440.

The previous prime is 13699973662537. The next prime is 13699973662601. The reversal of 13699973662545 is 54526637999631.

It is not a de Polignac number, because 13699973662545 - 2³ = 13699973662537 is a prime.

It is an unprimeable number.

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, 1894875177 + ... + 1894882406.

It is an arithmetic number, because the mean of its divisors is an integer number (1375682002992).

Almost surely, 2^{13699973662545} is an apocalyptic number.

13699973662545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13699973662545 is a deficient number, since it is larger than the sum of its proper divisors (8310938385327).

13699973662545 is a wasteful number, since it uses less digits than its factorization.

13699973662545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3789757832.

The product of its digits is 1984046400, while the sum is 75.

The spelling of 13699973662545 in words is "thirteen trillion, six hundred ninety-nine billion, nine hundred seventy-three million, six hundred sixty-two thousand, five hundred forty-five".