16487251679 has 2 divisors, whose sum is σ = 16487251680. Its totient is φ = 16487251678.

The previous prime is 16487251663. The next prime is 16487251687. The reversal of 16487251679 is 97615278461.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16487251679 - 2⁴ = 16487251663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16487251279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8243625839 + 8243625840.

It is an arithmetic number, because the mean of its divisors is an integer number (8243625840).

Almost surely, 2^16487251679 is an apocalyptic number.

16487251679 is a deficient number, since it is larger than the sum of its proper divisors (1).

16487251679 is an equidigital number, since it uses as much as digits as its factorization.

16487251679 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5080320, while the sum is 56.

The spelling of 16487251679 in words is "sixteen billion, four hundred eighty-seven million, two hundred fifty-one thousand, six hundred seventy-nine".