28776373113 has 8 divisors (see below), whose sum is σ = 38644530400. Its totient is φ = 19046232288.

The previous prime is 28776373091. The next prime is 28776373139. The reversal of 28776373113 is 31137367782.

It is a happy number.

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

It is not a de Polignac number, because 28776373113 - 2⁸ = 28776372857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28776303113) 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, 34503628 + ... + 34504461.

It is an arithmetic number, because the mean of its divisors is an integer number (4830566300).

Almost surely, 2^28776373113 is an apocalyptic number.

It is an amenable number.

28776373113 is a deficient number, since it is larger than the sum of its proper divisors (9868157287).

28776373113 is a wasteful number, since it uses less digits than its factorization.

28776373113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69008231.

The product of its digits is 889056, while the sum is 48.

The spelling of 28776373113 in words is "twenty-eight billion, seven hundred seventy-six million, three hundred seventy-three thousand, one hundred thirteen".