28768574263 has 16 divisors (see below), whose sum is σ = 34622394912. Its totient is φ = 23552640000.

The previous prime is 28768574251. The next prime is 28768574279. The reversal of 28768574263 is 36247586782.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28768574263 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28768574198 and 28768574207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28768574243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2447538 + ... + 2459263.

It is an arithmetic number, because the mean of its divisors is an integer number (2163899682).

Almost surely, 2^28768574263 is an apocalyptic number.

28768574263 is a deficient number, since it is larger than the sum of its proper divisors (5853820649).

28768574263 is a wasteful number, since it uses less digits than its factorization.

28768574263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4906866.

The product of its digits is 27095040, while the sum is 58.

The spelling of 28768574263 in words is "twenty-eight billion, seven hundred sixty-eight million, five hundred seventy-four thousand, two hundred sixty-three".