16981840763 has 2 divisors, whose sum is σ = 16981840764. Its totient is φ = 16981840762.

The previous prime is 16981840741. The next prime is 16981840783. The reversal of 16981840763 is 36704818961.

It is a strong prime.

It is an emirp because it is prime and its reverse (36704818961) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16981840763 - 2⁸ = 16981840507 is a prime.

It is not a weakly prime, because it can be changed into another prime (16981840783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8490920381 + 8490920382.

It is an arithmetic number, because the mean of its divisors is an integer number (8490920382).

Almost surely, 2^16981840763 is an apocalyptic number.

16981840763 is a deficient number, since it is larger than the sum of its proper divisors (1).

16981840763 is an equidigital number, since it uses as much as digits as its factorization.

16981840763 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1741824, while the sum is 53.

The spelling of 16981840763 in words is "sixteen billion, nine hundred eighty-one million, eight hundred forty thousand, seven hundred sixty-three".