18630077503 has 2 divisors, whose sum is σ = 18630077504. Its totient is φ = 18630077502.

The previous prime is 18630077491. The next prime is 18630077509. The reversal of 18630077503 is 30577003681.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18630077503 - 2⁹ = 18630076991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18630077509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9315038751 + 9315038752.

It is an arithmetic number, because the mean of its divisors is an integer number (9315038752).

Almost surely, 2^18630077503 is an apocalyptic number.

18630077503 is a deficient number, since it is larger than the sum of its proper divisors (1).

18630077503 is an equidigital number, since it uses as much as digits as its factorization.

18630077503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 105840, while the sum is 40.

The spelling of 18630077503 in words is "eighteen billion, six hundred thirty million, seventy-seven thousand, five hundred three".