13744761645 has 32 divisors (see below), whose sum is σ = 22080840192. Its totient is φ = 7300867392.

The previous prime is 13744761629. The next prime is 13744761677. The reversal of 13744761645 is 54616744731.

It is not a de Polignac number, because 13744761645 - 2⁴ = 13744761629 is a prime.

It is a super-3 number, since 3×13744761645³ (a number of 31 digits) contains 333 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13744761594 and 13744761603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4289614 + ... + 4292816.

It is an arithmetic number, because the mean of its divisors is an integer number (690026256).

Almost surely, 2^13744761645 is an apocalyptic number.

13744761645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13744761645 is a deficient number, since it is larger than the sum of its proper divisors (8336078547).

13744761645 is a wasteful number, since it uses less digits than its factorization.

13744761645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4281.

The product of its digits is 1693440, while the sum is 48.

The spelling of 13744761645 in words is "thirteen billion, seven hundred forty-four million, seven hundred sixty-one thousand, six hundred forty-five".