28682132164 has 27 divisors (see below), whose sum is σ = 58393453293. Its totient is φ = 12291326208.

The previous prime is 28682132137. The next prime is 28682132191. The reversal of 28682132164 is 46123128682.

It is a happy number.

The square root of 28682132164 is 169358.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (28682132137) and next prime (28682132191).

It can be written as a sum of positive squares in only one way, i.e., 795804100 + 27886328064 = 28210^2 + 166992^2 .

It is a super-3 number, since 3×28682132164³ (a number of 32 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28682132164.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2364964 + ... + 2377060.

Almost surely, 2^28682132164 is an apocalyptic number.

28682132164 is the 169358-th square number.

It is an amenable number.

28682132164 is an abundant number, since it is smaller than the sum of its proper divisors (29711321129).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28682132164 is an frugal number, since it uses more digits than its factorization.

28682132164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24212 (or 12106 counting only the distinct ones).

The product of its digits is 221184, while the sum is 43.

The spelling of 28682132164 in words is "twenty-eight billion, six hundred eighty-two million, one hundred thirty-two thousand, one hundred sixty-four".