28294886610 has 24 divisors (see below), whose sum is σ = 73566705420. Its totient is φ = 7545303072.

The previous prime is 28294886597. The next prime is 28294886629. The reversal of 28294886610 is 1668849282.

It can be written as a sum of positive squares in 2 ways, for example, as 27649370961 + 645515649 = 166281^2 + 25407^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 157193725 + ... + 157193904.

Almost surely, 2^28294886610 is an apocalyptic number.

28294886610 is an abundant number, since it is smaller than the sum of its proper divisors (45271818810).

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

28294886610 is a wasteful number, since it uses less digits than its factorization.

28294886610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314387642 (or 314387639 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 54.

The spelling of 28294886610 in words is "twenty-eight billion, two hundred ninety-four million, eight hundred eighty-six thousand, six hundred ten".