16986931079 has 2 divisors, whose sum is σ = 16986931080. Its totient is φ = 16986931078.

The previous prime is 16986930973. The next prime is 16986931111. The reversal of 16986931079 is 97013968961.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16986931079 - 2⁸ = 16986930823 is a prime.

It is a super-2 number, since 2×16986931079² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16986981079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8493465539 + 8493465540.

It is an arithmetic number, because the mean of its divisors is an integer number (8493465540).

Almost surely, 2^16986931079 is an apocalyptic number.

16986931079 is a deficient number, since it is larger than the sum of its proper divisors (1).

16986931079 is an equidigital number, since it uses as much as digits as its factorization.

16986931079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4408992, while the sum is 59.

The spelling of 16986931079 in words is "sixteen billion, nine hundred eighty-six million, nine hundred thirty-one thousand, seventy-nine".