16438600087 has 12 divisors (see below), whose sum is σ = 20343290160. Its totient is φ = 13006363968.

The previous prime is 16438600037. The next prime is 16438600097. The reversal of 16438600087 is 78000683461.

It is not a de Polignac number, because 16438600087 - 2¹¹ = 16438598039 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 (16438600037) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6946662 + ... + 6949027.

It is an arithmetic number, because the mean of its divisors is an integer number (1695274180).

Almost surely, 2^16438600087 is an apocalyptic number.

16438600087 is a deficient number, since it is larger than the sum of its proper divisors (3904690073).

16438600087 is a wasteful number, since it uses less digits than its factorization.

16438600087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13895722 (or 13895709 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 43.

The spelling of 16438600087 in words is "sixteen billion, four hundred thirty-eight million, six hundred thousand, eighty-seven".