27794131405390 has 32 divisors (see below), whose sum is σ = 58029879481344. Its totient is φ = 9387186383520.

The previous prime is 27794131405387. The next prime is 27794131405399. The reversal of 27794131405390 is 9350413149772.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27794131405399) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2963122326 + ... + 2963131705.

It is an arithmetic number, because the mean of its divisors is an integer number (1813433733792).

Almost surely, 2^{27794131405390} is an apocalyptic number.

27794131405390 is an abundant number, since it is smaller than the sum of its proper divisors (30235748075954).

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

27794131405390 is a wasteful number, since it uses less digits than its factorization.

27794131405390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5926254112.

The product of its (nonzero) digits is 5715360, while the sum is 55.

The spelling of 27794131405390 in words is "twenty-seven trillion, seven hundred ninety-four billion, one hundred thirty-one million, four hundred five thousand, three hundred ninety".