28766797313 has 8 divisors (see below), whose sum is σ = 28903330368. Its totient is φ = 28630582704.

The previous prime is 28766797309. The next prime is 28766797343. The reversal of 28766797313 is 31379766782.

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 28766797313 - 2² = 28766797309 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28766797343) 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, 102470 + ... + 260832.

It is an arithmetic number, because the mean of its divisors is an integer number (3612916296).

Almost surely, 2^28766797313 is an apocalyptic number.

It is an amenable number.

28766797313 is a deficient number, since it is larger than the sum of its proper divisors (136533055).

28766797313 is a wasteful number, since it uses less digits than its factorization.

28766797313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159223.

The product of its digits is 16003008, while the sum is 59.

The spelling of 28766797313 in words is "twenty-eight billion, seven hundred sixty-six million, seven hundred ninety-seven thousand, three hundred thirteen".