18714154451 has 4 divisors (see below), whose sum is σ = 18733193232. Its totient is φ = 18695115672.

The previous prime is 18714154429. The next prime is 18714154499. The reversal of 18714154451 is 15445141781.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 18714154451 - 2³⁴ = 1534285267 is a prime.

It is a super-2 number, since 2×18714154451² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18714154399 and 18714154408.

It is not an unprimeable number, because it can be changed into a prime (18714154351) 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, 9517916 + ... + 9519881.

It is an arithmetic number, because the mean of its divisors is an integer number (4683298308).

Almost surely, 2^18714154451 is an apocalyptic number.

18714154451 is a deficient number, since it is larger than the sum of its proper divisors (19038781).

18714154451 is an equidigital number, since it uses as much as digits as its factorization.

18714154451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19038780.

The product of its digits is 89600, while the sum is 41.

The spelling of 18714154451 in words is "eighteen billion, seven hundred fourteen million, one hundred fifty-four thousand, four hundred fifty-one".