13994157723 has 192 divisors, whose sum is σ = 25635225600. Its totient is φ = 6623285760.

The previous prime is 13994157707. The next prime is 13994157757. The reversal of 13994157723 is 32775149931.

It is not a de Polignac number, because 13994157723 - 2⁴ = 13994157707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13994157773) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 177141198 + ... + 177141276.

It is an arithmetic number, because the mean of its divisors is an integer number (133516800).

Almost surely, 2^13994157723 is an apocalyptic number.

13994157723 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13994157723 is a deficient number, since it is larger than the sum of its proper divisors (11641067877).

13994157723 is a wasteful number, since it uses less digits than its factorization.

13994157723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242 (or 229 counting only the distinct ones).

The product of its digits is 1428840, while the sum is 51.

The spelling of 13994157723 in words is "thirteen billion, nine hundred ninety-four million, one hundred fifty-seven thousand, seven hundred twenty-three".