13724387051 has 4 divisors (see below), whose sum is σ = 13724621400. Its totient is φ = 13724152704.

The previous prime is 13724386979. The next prime is 13724387069. The reversal of 13724387051 is 15078342731.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 15078342731 = 103 ⋅146391677.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13724387051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13724387081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55115 + ... + 174603.

It is an arithmetic number, because the mean of its divisors is an integer number (3431155350).

Almost surely, 2^13724387051 is an apocalyptic number.

13724387051 is a deficient number, since it is larger than the sum of its proper divisors (234349).

13724387051 is a wasteful number, since it uses less digits than its factorization.

13724387051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234348.

The product of its (nonzero) digits is 141120, while the sum is 41.

The spelling of 13724387051 in words is "thirteen billion, seven hundred twenty-four million, three hundred eighty-seven thousand, fifty-one".