18068882451 has 4 divisors (see below), whose sum is σ = 24091843272. Its totient is φ = 12045921632.

The previous prime is 18068882437. The next prime is 18068882519. The reversal of 18068882451 is 15428886081.

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 18068882451 - 2⁷ = 18068882323 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18068882394 and 18068882403.

It is not an unprimeable number, because it can be changed into a prime (18068882431) 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, 3011480406 + ... + 3011480411.

It is an arithmetic number, because the mean of its divisors is an integer number (6022960818).

Almost surely, 2^18068882451 is an apocalyptic number.

18068882451 is a deficient number, since it is larger than the sum of its proper divisors (6022960821).

18068882451 is an equidigital number, since it uses as much as digits as its factorization.

18068882451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6022960820.

The product of its (nonzero) digits is 983040, while the sum is 51.

The spelling of 18068882451 in words is "eighteen billion, sixty-eight million, eight hundred eighty-two thousand, four hundred fifty-one".