16487790847 has 4 divisors (see below), whose sum is σ = 17986680936. Its totient is φ = 14988900760.

The previous prime is 16487790841. The next prime is 16487790857. The reversal of 16487790847 is 74809778461.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16487790847 - 2⁷ = 16487790719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16487790841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 749445028 + ... + 749445049.

It is an arithmetic number, because the mean of its divisors is an integer number (4496670234).

Almost surely, 2^16487790847 is an apocalyptic number.

16487790847 is a deficient number, since it is larger than the sum of its proper divisors (1498890089).

16487790847 is a wasteful number, since it uses less digits than its factorization.

16487790847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1498890088.

The product of its (nonzero) digits is 18966528, while the sum is 61.

The spelling of 16487790847 in words is "sixteen billion, four hundred eighty-seven million, seven hundred ninety thousand, eight hundred forty-seven".