28012167459 has 12 divisors (see below), whose sum is σ = 41555588256. Its totient is φ = 18170054352.

The previous prime is 28012167427. The next prime is 28012167487. The reversal of 28012167459 is 95476121082.

28012167459 is a `hidden beast` number, since 28 + 0 + 12 + 167 + 459 = 666.

It is not a de Polignac number, because 28012167459 - 2⁵ = 28012167427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28012167499) 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, 42059979 + ... + 42060644.

It is an arithmetic number, because the mean of its divisors is an integer number (3462965688).

Almost surely, 2^28012167459 is an apocalyptic number.

28012167459 is a deficient number, since it is larger than the sum of its proper divisors (13543420797).

28012167459 is a wasteful number, since it uses less digits than its factorization.

28012167459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84120666 (or 84120663 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The spelling of 28012167459 in words is "twenty-eight billion, twelve million, one hundred sixty-seven thousand, four hundred fifty-nine".