18606700451 has 2 divisors, whose sum is σ = 18606700452. Its totient is φ = 18606700450.

The previous prime is 18606700439. The next prime is 18606700459. The reversal of 18606700451 is 15400760681.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18606700451 - 2¹⁴ = 18606684067 is a prime.

It is not a weakly prime, because it can be changed into another prime (18606700459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9303350225 + 9303350226.

It is an arithmetic number, because the mean of its divisors is an integer number (9303350226).

Almost surely, 2^18606700451 is an apocalyptic number.

18606700451 is a deficient number, since it is larger than the sum of its proper divisors (1).

18606700451 is an equidigital number, since it uses as much as digits as its factorization.

18606700451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 38.

The spelling of 18606700451 in words is "eighteen billion, six hundred six million, seven hundred thousand, four hundred fifty-one".