28677265761 has 16 divisors (see below), whose sum is σ = 38772358016. Its totient is φ = 18850340736.

The previous prime is 28677265753. The next prime is 28677265783. The reversal of 28677265761 is 16756277682.

It is not a de Polignac number, because 28677265761 - 2³ = 28677265753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28677260761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 739491 + ... + 777303.

It is an arithmetic number, because the mean of its divisors is an integer number (2423272376).

Almost surely, 2^28677265761 is an apocalyptic number.

It is an amenable number.

28677265761 is a deficient number, since it is larger than the sum of its proper divisors (10095092255).

28677265761 is a wasteful number, since it uses less digits than its factorization.

28677265761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41352.

The product of its digits is 11854080, while the sum is 57.

The spelling of 28677265761 in words is "twenty-eight billion, six hundred seventy-seven million, two hundred sixty-five thousand, seven hundred sixty-one".