18060777983 has 2 divisors, whose sum is σ = 18060777984. Its totient is φ = 18060777982.

The previous prime is 18060777961. The next prime is 18060778003. The reversal of 18060777983 is 38977706081.

It is a strong prime.

It is an emirp because it is prime and its reverse (38977706081) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18060777983 - 2²⁸ = 17792342527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18060777923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9030388991 + 9030388992.

It is an arithmetic number, because the mean of its divisors is an integer number (9030388992).

Almost surely, 2^18060777983 is an apocalyptic number.

18060777983 is a deficient number, since it is larger than the sum of its proper divisors (1).

18060777983 is an equidigital number, since it uses as much as digits as its factorization.

18060777983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3556224, while the sum is 56.

The spelling of 18060777983 in words is "eighteen billion, sixty million, seven hundred seventy-seven thousand, nine hundred eighty-three".