28078577026 has 8 divisors (see below), whose sum is σ = 43570205820. Its totient is φ = 13555175088.

The previous prime is 28078577003. The next prime is 28078577039. The reversal of 28078577026 is 62077587082.

It can be written as a sum of positive squares in 2 ways, for example, as 27406471401 + 672105625 = 165549^2 + 25925^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 242056641 + ... + 242056756.

Almost surely, 2^28078577026 is an apocalyptic number.

28078577026 is a deficient number, since it is larger than the sum of its proper divisors (15491628794).

28078577026 is a wasteful number, since it uses less digits than its factorization.

28078577026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484113428.

The product of its (nonzero) digits is 2634240, while the sum is 52.

The spelling of 28078577026 in words is "twenty-eight billion, seventy-eight million, five hundred seventy-seven thousand, twenty-six".