27896682529 has 3 divisors (see below), whose sum is σ = 27896849553. Its totient is φ = 27896515506.

The previous prime is 27896682523. The next prime is 27896682557. The reversal of 27896682529 is 92528669872.

The square root of 27896682529 is 167023.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 27896682529 - 2³ = 27896682521 is a prime.

It is a super-2 number, since 2×27896682529² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27896682521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 83512 + ... + 250534.

It is an arithmetic number, because the mean of its divisors is an integer number (9298949851).

Almost surely, 2^27896682529 is an apocalyptic number.

27896682529 is the 167023-rd square number.

27896682529 is the 83512-nd centered octagonal number.

It is an amenable number.

27896682529 is a deficient number, since it is larger than the sum of its proper divisors (167024).

27896682529 is an frugal number, since it uses more digits than its factorization.

27896682529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334046 (or 167023 counting only the distinct ones).

The product of its digits is 52254720, while the sum is 64.

Multiplying 27896682529 by its sum of digits (64), we get a square (1785387681856 = 1336184²).

The spelling of 27896682529 in words is "twenty-seven billion, eight hundred ninety-six million, six hundred eighty-two thousand, five hundred twenty-nine".