28356964897466 has 8 divisors (see below), whose sum is σ = 42680619522324. Its totient is φ = 14130091723360.

The previous prime is 28356964897453. The next prime is 28356964897483. The reversal of 28356964897466 is 66479846965382.

It can be written as a sum of positive squares in 2 ways, for example, as 28244749947241 + 112214950225 = 5314579^2 + 334985^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×28356964897466² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24195361955 + ... + 24195363126.

Almost surely, 2^{28356964897466} is an apocalyptic number.

28356964897466 is a deficient number, since it is larger than the sum of its proper divisors (14323654624858).

28356964897466 is a wasteful number, since it uses less digits than its factorization.

28356964897466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48390725376.

The product of its digits is 22574039040, while the sum is 83.

The spelling of 28356964897466 in words is "twenty-eight trillion, three hundred fifty-six billion, nine hundred sixty-four million, eight hundred ninety-seven thousand, four hundred sixty-six".