28855713802 has 4 divisors (see below), whose sum is σ = 43283570706. Its totient is φ = 14427856900.

The previous prime is 28855713791. The next prime is 28855713853. The reversal of 28855713802 is 20831755882.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 28801823521 + 53890281 = 169711^2 + 7341^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7213928449 + ... + 7213928452.

Almost surely, 2^28855713802 is an apocalyptic number.

28855713802 is a deficient number, since it is larger than the sum of its proper divisors (14427856904).

28855713802 is a wasteful number, since it uses less digits than its factorization.

28855713802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14427856903.

The product of its (nonzero) digits is 1075200, while the sum is 49.

The spelling of 28855713802 in words is "twenty-eight billion, eight hundred fifty-five million, seven hundred thirteen thousand, eight hundred two".