13149536723 has 8 divisors (see below), whose sum is σ = 13185120000. Its totient is φ = 13113991368.

The previous prime is 13149536711. The next prime is 13149536749. The reversal of 13149536723 is 32763594131.

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 13149536723 - 2¹⁴ = 13149520339 is a prime.

It is a super-5 number, since 5×13149536723⁵ (a number of 52 digits) contains 55555 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13149536123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 769490 + ... + 786392.

It is an arithmetic number, because the mean of its divisors is an integer number (1648140000).

Almost surely, 2^13149536723 is an apocalyptic number.

13149536723 is a deficient number, since it is larger than the sum of its proper divisors (35583277).

13149536723 is a wasteful number, since it uses less digits than its factorization.

13149536723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18961.

The product of its digits is 408240, while the sum is 44.

The spelling of 13149536723 in words is "thirteen billion, one hundred forty-nine million, five hundred thirty-six thousand, seven hundred twenty-three".