27250220712 has 128 divisors (see below), whose sum is σ = 80647902720. Its totient is φ = 7564128000.

The previous prime is 27250220651. The next prime is 27250220731. The reversal of 27250220712 is 21702205272.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 27250220712.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 419287 + ... + 479897.

It is an arithmetic number, because the mean of its divisors is an integer number (630061740).

Almost surely, 2^27250220712 is an apocalyptic number.

27250220712 is a gapful number since it is divisible by the number (22) 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 27250220712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40323951360).

27250220712 is an abundant number, since it is smaller than the sum of its proper divisors (53397682008).

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

27250220712 is a wasteful number, since it uses less digits than its factorization.

27250220712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60775 (or 60771 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 30.

Adding to 27250220712 its reverse (21702205272), we get a palindrome (48952425984).

The spelling of 27250220712 in words is "twenty-seven billion, two hundred fifty million, two hundred twenty thousand, seven hundred twelve".