28766771148256 has 24 divisors (see below), whose sum is σ = 56640770169984. Its totient is φ = 14381813644800.

The previous prime is 28766771148221. The next prime is 28766771148293. The reversal of 28766771148256 is 65284117766782.

It is a super-2 number, since 2×28766771148256² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48825385 + ... + 49411048.

It is an arithmetic number, because the mean of its divisors is an integer number (2360032090416).

Almost surely, 2^{28766771148256} is an apocalyptic number.

It is an amenable number.

28766771148256 is a deficient number, since it is larger than the sum of its proper divisors (27873999021728).

28766771148256 is an equidigital number, since it uses as much as digits as its factorization.

28766771148256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98245594 (or 98245586 counting only the distinct ones).

The product of its digits is 379330560, while the sum is 70.

The spelling of 28766771148256 in words is "twenty-eight trillion, seven hundred sixty-six billion, seven hundred seventy-one million, one hundred forty-eight thousand, two hundred fifty-six".