28439699346 has 16 divisors (see below), whose sum is σ = 63199332000. Its totient is φ = 9479899764.

The previous prime is 28439699311. The next prime is 28439699371. The reversal of 28439699346 is 64399693482.

28439699346 is a `hidden beast` number, since 284 + 3 + 9 + 6 + 9 + 9 + 346 = 666.

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, 263330496 + ... + 263330603.

It is an arithmetic number, because the mean of its divisors is an integer number (3949958250).

Almost surely, 2^28439699346 is an apocalyptic number.

28439699346 is an abundant number, since it is smaller than the sum of its proper divisors (34759632654).

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

28439699346 is a wasteful number, since it uses less digits than its factorization.

28439699346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526661110 (or 526661104 counting only the distinct ones).

The product of its digits is 60466176, while the sum is 63.

The spelling of 28439699346 in words is "twenty-eight billion, four hundred thirty-nine million, six hundred ninety-nine thousand, three hundred forty-six".