28323331767 has 12 divisors (see below), whose sum is σ = 41333248320. Its totient is φ = 18687558528.

The previous prime is 28323331739. The next prime is 28323331793. The reversal of 28323331767 is 76713332382.

28323331767 is a `hidden beast` number, since 2 + 8 + 323 + 3 + 317 + 6 + 7 = 666.

It is not a de Polignac number, because 28323331767 - 2⁶ = 28323331703 is a prime.

It is a super-2 number, since 2×28323331767² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28323331367) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16220967 + ... + 16222712.

It is an arithmetic number, because the mean of its divisors is an integer number (3444437360).

Almost surely, 2^28323331767 is an apocalyptic number.

28323331767 is a deficient number, since it is larger than the sum of its proper divisors (13009916553).

28323331767 is a wasteful number, since it uses less digits than its factorization.

28323331767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32443782 (or 32443779 counting only the distinct ones).

The product of its digits is 762048, while the sum is 45.

The spelling of 28323331767 in words is "twenty-eight billion, three hundred twenty-three million, three hundred thirty-one thousand, seven hundred sixty-seven".