27912915162 has 192 divisors, whose sum is σ = 74239027200. Its totient is φ = 7469591040.

The previous prime is 27912915113. The next prime is 27912915223. The reversal of 27912915162 is 26151921972.

27912915162 is a `hidden beast` number, since 2 + 7 + 9 + 129 + 1 + 516 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6841039 + ... + 6845117.

It is an arithmetic number, because the mean of its divisors is an integer number (386661600).

Almost surely, 2^27912915162 is an apocalyptic number.

27912915162 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 27912915162, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37119513600).

27912915162 is an abundant number, since it is smaller than the sum of its proper divisors (46326112038).

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

27912915162 is a wasteful number, since it uses less digits than its factorization.

27912915162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4241 (or 4238 counting only the distinct ones).

The product of its digits is 136080, while the sum is 45.

The spelling of 27912915162 in words is "twenty-seven billion, nine hundred twelve million, nine hundred fifteen thousand, one hundred sixty-two".