28163340051 has 32 divisors (see below), whose sum is σ = 47280554496. Its totient is φ = 14485440000.

The previous prime is 28163340011. The next prime is 28163340089. The reversal of 28163340051 is 15004336182.

It is not a de Polignac number, because 28163340051 - 2⁷ = 28163339923 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 28163339994 and 28163340021.

It is not an unprimeable number, because it can be changed into a prime (28163340011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 580230 + ... + 626891.

It is an arithmetic number, because the mean of its divisors is an integer number (1477517328).

Almost surely, 2^28163340051 is an apocalyptic number.

28163340051 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

28163340051 is a deficient number, since it is larger than the sum of its proper divisors (19117214445).

28163340051 is a wasteful number, since it uses less digits than its factorization.

28163340051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1207243.

The product of its (nonzero) digits is 17280, while the sum is 33.

The spelling of 28163340051 in words is "twenty-eight billion, one hundred sixty-three million, three hundred forty thousand, fifty-one".