27690779347732 has 12 divisors (see below), whose sum is σ = 51309385262100. Its totient is φ = 13030954987136.

The previous prime is 27690779347727. The next prime is 27690779347733. The reversal of 27690779347732 is 23774397709672.

It can be written as a sum of positive squares in 2 ways, for example, as 15177538138896 + 12513241208836 = 3895836^2 + 3537406^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27690779347733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203608671607 + ... + 203608671742.

It is an arithmetic number, because the mean of its divisors is an integer number (4275782105175).

Almost surely, 2^{27690779347732} is an apocalyptic number.

It is an amenable number.

27690779347732 is a deficient number, since it is larger than the sum of its proper divisors (23618605914368).

27690779347732 is a wasteful number, since it uses less digits than its factorization.

27690779347732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407217343370 (or 407217343368 counting only the distinct ones).

The product of its (nonzero) digits is 1176221088, while the sum is 73.

The spelling of 27690779347732 in words is "twenty-seven trillion, six hundred ninety billion, seven hundred seventy-nine million, three hundred forty-seven thousand, seven hundred thirty-two".