16987099487 has 2 divisors, whose sum is σ = 16987099488. Its totient is φ = 16987099486.

The previous prime is 16987099477. The next prime is 16987099529. The reversal of 16987099487 is 78499078961.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16987099487 - 2¹⁶ = 16987033951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16987099427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8493549743 + 8493549744.

It is an arithmetic number, because the mean of its divisors is an integer number (8493549744).

Almost surely, 2^16987099487 is an apocalyptic number.

16987099487 is a deficient number, since it is larger than the sum of its proper divisors (1).

16987099487 is an equidigital number, since it uses as much as digits as its factorization.

16987099487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54867456, while the sum is 68.

The spelling of 16987099487 in words is "sixteen billion, nine hundred eighty-seven million, ninety-nine thousand, four hundred eighty-seven".