27238122456 has 32 divisors (see below), whose sum is σ = 68099582400. Its totient is φ = 9078804000.

The previous prime is 27238122451. The next prime is 27238122479. The reversal of 27238122456 is 65422183272.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27238122451) 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 7 ways as a sum of consecutive naturals, for example, 552831 + ... + 600081.

It is an arithmetic number, because the mean of its divisors is an integer number (2128111950).

Almost surely, 2^27238122456 is an apocalyptic number.

It is an amenable number.

27238122456 is an abundant number, since it is smaller than the sum of its proper divisors (40861459944).

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

27238122456 is a wasteful number, since it uses less digits than its factorization.

27238122456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71279 (or 71275 counting only the distinct ones).

The product of its digits is 322560, while the sum is 42.

The spelling of 27238122456 in words is "twenty-seven billion, two hundred thirty-eight million, one hundred twenty-two thousand, four hundred fifty-six".