27194401978332 has 24 divisors (see below), whose sum is σ = 63457926596736. Its totient is φ = 9064183233648.

The previous prime is 27194401978321. The next prime is 27194401978333. The reversal of 27194401978332 is 23387910449172.

It is a super-3 number, since 3×27194401978332³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27194401978333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76994688 + ... + 77347079.

It is an arithmetic number, because the mean of its divisors is an integer number (2644080274864).

Almost surely, 2^{27194401978332} is an apocalyptic number.

It is an amenable number.

27194401978332 is an abundant number, since it is smaller than the sum of its proper divisors (36263524618404).

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

27194401978332 is a wasteful number, since it uses less digits than its factorization.

27194401978332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154356457 (or 154356455 counting only the distinct ones).

The product of its (nonzero) digits is 18289152, while the sum is 60.

The spelling of 27194401978332 in words is "twenty-seven trillion, one hundred ninety-four billion, four hundred one million, nine hundred seventy-eight thousand, three hundred thirty-two".