27212950782 has 128 divisors (see below), whose sum is σ = 63228211200. Its totient is φ = 8666179200.

The previous prime is 27212950771. The next prime is 27212950861. The reversal of 27212950782 is 28705921272.

27212950782 is a `hidden beast` number, since 27 + 21 + 29 + 507 + 82 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 59030032 + ... + 59030492.

It is an arithmetic number, because the mean of its divisors is an integer number (493970400).

Almost surely, 2^27212950782 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27212950782, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31614105600).

27212950782 is an abundant number, since it is smaller than the sum of its proper divisors (36015260418).

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

27212950782 is a wasteful number, since it uses less digits than its factorization.

27212950782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 879 (or 873 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The spelling of 27212950782 in words is "twenty-seven billion, two hundred twelve million, nine hundred fifty thousand, seven hundred eighty-two".