16239943494 has 12 divisors (see below), whose sum is σ = 35186544276. Its totient is φ = 5413314492.

The previous prime is 16239943483. The next prime is 16239943513. The reversal of 16239943494 is 49434993261.

16239943494 is a `hidden beast` number, since 1 + 6 + 23 + 99 + 43 + 494 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 16239943494.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 451109524 + ... + 451109559.

It is an arithmetic number, because the mean of its divisors is an integer number (2932212023).

Almost surely, 2^16239943494 is an apocalyptic number.

16239943494 is an abundant number, since it is smaller than the sum of its proper divisors (18946600782).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16239943494 is a wasteful number, since it uses less digits than its factorization.

16239943494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902219091 (or 902219088 counting only the distinct ones).

The product of its digits is 5038848, while the sum is 54.

The spelling of 16239943494 in words is "sixteen billion, two hundred thirty-nine million, nine hundred forty-three thousand, four hundred ninety-four".