16880783687 has 2 divisors, whose sum is σ = 16880783688. Its totient is φ = 16880783686.

The previous prime is 16880783683. The next prime is 16880783827. The reversal of 16880783687 is 78638708861.

It is a weak prime.

It is an emirp because it is prime and its reverse (78638708861) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16880783687 - 2² = 16880783683 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16880783683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8440391843 + 8440391844.

It is an arithmetic number, because the mean of its divisors is an integer number (8440391844).

Almost surely, 2^16880783687 is an apocalyptic number.

16880783687 is a deficient number, since it is larger than the sum of its proper divisors (1).

16880783687 is an equidigital number, since it uses as much as digits as its factorization.

16880783687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21676032, while the sum is 62.

The spelling of 16880783687 in words is "sixteen billion, eight hundred eighty million, seven hundred eighty-three thousand, six hundred eighty-seven".