27947586492 has 288 divisors, whose sum is σ = 90480499200. Its totient is φ = 7513793280.

The previous prime is 27947586481. The next prime is 27947586497. The reversal of 27947586492 is 29468574972.

27947586492 is a `hidden beast` number, since 2 + 7 + 9 + 4 + 7 + 586 + 49 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27947586497) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5665267 + ... + 5670197.

It is an arithmetic number, because the mean of its divisors is an integer number (314168400).

Almost surely, 2^27947586492 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 27947586492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45240249600).

27947586492 is an abundant number, since it is smaller than the sum of its proper divisors (62532912708).

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

27947586492 is a wasteful number, since it uses less digits than its factorization.

27947586492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4988 (or 4960 counting only the distinct ones).

The product of its digits is 60963840, while the sum is 63.

The spelling of 27947586492 in words is "twenty-seven billion, nine hundred forty-seven million, five hundred eighty-six thousand, four hundred ninety-two".