27394173984 has 96 divisors (see below), whose sum is σ = 72908881920. Its totient is φ = 9004799232.

The previous prime is 27394173977. The next prime is 27394174001. The reversal of 27394173984 is 48937149372.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8242147 + ... + 8245469.

It is an arithmetic number, because the mean of its divisors is an integer number (759467520).

Almost surely, 2^27394173984 is an apocalyptic number.

27394173984 is a gapful number since it is divisible by the number (24) 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 27394173984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36454440960).

27394173984 is an abundant number, since it is smaller than the sum of its proper divisors (45514707936).

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

27394173984 is a wasteful number, since it uses less digits than its factorization.

27394173984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4502 (or 4494 counting only the distinct ones).

The product of its digits is 9144576, while the sum is 57.

The spelling of 27394173984 in words is "twenty-seven billion, three hundred ninety-four million, one hundred seventy-three thousand, nine hundred eighty-four".