18300798427 has 2 divisors, whose sum is σ = 18300798428. Its totient is φ = 18300798426.

The previous prime is 18300798407. The next prime is 18300798457. The reversal of 18300798427 is 72489700381.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18300798427 is a prime.

It is not a weakly prime, because it can be changed into another prime (18300798407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9150399213 + 9150399214.

It is an arithmetic number, because the mean of its divisors is an integer number (9150399214).

Almost surely, 2^18300798427 is an apocalyptic number.

18300798427 is a deficient number, since it is larger than the sum of its proper divisors (1).

18300798427 is an equidigital number, since it uses as much as digits as its factorization.

18300798427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 677376, while the sum is 49.

The spelling of 18300798427 in words is "eighteen billion, three hundred million, seven hundred ninety-eight thousand, four hundred twenty-seven".