28306754667 has 40 divisors (see below), whose sum is σ = 44549925200. Its totient is φ = 17862296256.

The previous prime is 28306754657. The next prime is 28306754713. The reversal of 28306754667 is 76645760382.

28306754667 is a `hidden beast` number, since 2 + 8 + 30 + 6 + 7 + 546 + 67 = 666.

It is not a de Polignac number, because 28306754667 - 2¹¹ = 28306752619 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28306754657) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1896309 + ... + 1911177.

It is an arithmetic number, because the mean of its divisors is an integer number (1113748130).

Almost surely, 2^28306754667 is an apocalyptic number.

28306754667 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

28306754667 is a deficient number, since it is larger than the sum of its proper divisors (16243170533).

28306754667 is a wasteful number, since it uses less digits than its factorization.

28306754667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16137 (or 16128 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 54.

The spelling of 28306754667 in words is "twenty-eight billion, three hundred six million, seven hundred fifty-four thousand, six hundred sixty-seven".