27812050812 has 648 divisors, whose sum is σ = 96643886976. Its totient is φ = 6845275008.

The previous prime is 27812050807. The next prime is 27812050837. The reversal of 27812050812 is 21805021872.

27812050812 is a `hidden beast` number, since 27 + 8 + 120 + 508 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 415105203 + ... + 415105269.

Almost surely, 2^27812050812 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27812050812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48321943488).

27812050812 is an abundant number, since it is smaller than the sum of its proper divisors (68831836164).

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

27812050812 is a wasteful number, since it uses less digits than its factorization.

27812050812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157 (or 111 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 36.

The spelling of 27812050812 in words is "twenty-seven billion, eight hundred twelve million, fifty thousand, eight hundred twelve".