28646462027 has 4 divisors (see below), whose sum is σ = 29891960400. Its totient is φ = 27400963656.

The previous prime is 28646462023. The next prime is 28646462041. The reversal of 28646462027 is 72026464682.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72026464682 = 2 ⋅36013232341.

It is a cyclic number.

It is not a de Polignac number, because 28646462027 - 2² = 28646462023 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28646462021) 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 3 ways as a sum of consecutive naturals, for example, 622749152 + ... + 622749197.

It is an arithmetic number, because the mean of its divisors is an integer number (7472990100).

Almost surely, 2^28646462027 is an apocalyptic number.

28646462027 is a deficient number, since it is larger than the sum of its proper divisors (1245498373).

28646462027 is a wasteful number, since it uses less digits than its factorization.

28646462027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1245498372.

The product of its (nonzero) digits is 1548288, while the sum is 47.

The spelling of 28646462027 in words is "twenty-eight billion, six hundred forty-six million, four hundred sixty-two thousand, twenty-seven".