16439428794 has 16 divisors (see below), whose sum is σ = 32953757760. Its totient is φ = 5467326240.

The previous prime is 16439428777. The next prime is 16439428883. The reversal of 16439428794 is 49782493461.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3117987 + ... + 3123254.

It is an arithmetic number, because the mean of its divisors is an integer number (2059609860).

Almost surely, 2^16439428794 is an apocalyptic number.

16439428794 is an abundant number, since it is smaller than the sum of its proper divisors (16514328966).

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

16439428794 is a wasteful number, since it uses less digits than its factorization.

16439428794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6241685.

The product of its digits is 10450944, while the sum is 57.

The spelling of 16439428794 in words is "sixteen billion, four hundred thirty-nine million, four hundred twenty-eight thousand, seven hundred ninety-four".