27712229888 has 90 divisors (see below), whose sum is σ = 64471732083. Its totient is φ = 11865369600.

The previous prime is 27712229863. The next prime is 27712229899. The reversal of 27712229888 is 88892221772.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 13856114944 + 13856114944 = 117712^2 + 117712^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=117712.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a Duffinian number.

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, 26366963 + ... + 26368013.

Almost surely, 2^27712229888 is an apocalyptic number.

27712229888 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27712229888

27712229888 is an abundant number, since it is smaller than the sum of its proper divisors (36759502195).

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

27712229888 is an frugal number, since it uses more digits than its factorization.

27712229888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2134 (or 1060 counting only the distinct ones).

The product of its digits is 3612672, while the sum is 56.

The spelling of 27712229888 in words is "twenty-seven billion, seven hundred twelve million, two hundred twenty-nine thousand, eight hundred eighty-eight".