28076723285 has 32 divisors (see below), whose sum is σ = 36663822720. Its totient is φ = 20517389568.

The previous prime is 28076723267. The next prime is 28076723329. The reversal of 28076723285 is 58232767082.

It is not a de Polignac number, because 28076723285 - 2⁸ = 28076723029 is a prime.

It is a super-2 number, since 2×28076723285² (a number of 22 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 31 ways as a sum of consecutive naturals, for example, 2859194 + ... + 2868996.

It is an arithmetic number, because the mean of its divisors is an integer number (1145744460).

Almost surely, 2^28076723285 is an apocalyptic number.

It is an amenable number.

28076723285 is a deficient number, since it is larger than the sum of its proper divisors (8587099435).

28076723285 is a wasteful number, since it uses less digits than its factorization.

28076723285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10277.

The product of its (nonzero) digits is 2257920, while the sum is 50.

The spelling of 28076723285 in words is "twenty-eight billion, seventy-six million, seven hundred twenty-three thousand, two hundred eighty-five".