27223657136 has 40 divisors (see below), whose sum is σ = 56827758624. Its totient is φ = 12559334400.

The previous prime is 27223657093. The next prime is 27223657151. The reversal of 27223657136 is 63175632272.

It is a happy number.

It is a super-2 number, since 2×27223657136² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 475661 + ... + 529811.

Almost surely, 2^27223657136 is an apocalyptic number.

27223657136 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

27223657136 is an abundant number, since it is smaller than the sum of its proper divisors (29604101488).

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

27223657136 is a wasteful number, since it uses less digits than its factorization.

27223657136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56589 (or 56583 counting only the distinct ones).

The product of its digits is 635040, while the sum is 44.

The spelling of 27223657136 in words is "twenty-seven billion, two hundred twenty-three million, six hundred fifty-seven thousand, one hundred thirty-six".