28113079649 has 8 divisors (see below), whose sum is σ = 29949255840. Its totient is φ = 26312557536.

The previous prime is 28113079613. The next prime is 28113079661. The reversal of 28113079649 is 94697031182.

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

It is a cyclic number.

It is not a de Polignac number, because 28113079649 - 2²⁸ = 27844644193 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28113079597 and 28113079606.

It is not an unprimeable number, because it can be changed into a prime (28113079609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8911892 + ... + 8915045.

It is an arithmetic number, because the mean of its divisors is an integer number (3743656980).

Almost surely, 2^28113079649 is an apocalyptic number.

It is an amenable number.

28113079649 is a deficient number, since it is larger than the sum of its proper divisors (1836176191).

28113079649 is a wasteful number, since it uses less digits than its factorization.

28113079649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17827039.

The product of its (nonzero) digits is 653184, while the sum is 50.

The spelling of 28113079649 in words is "twenty-eight billion, one hundred thirteen million, seventy-nine thousand, six hundred forty-nine".