27278786028732 has 48 divisors (see below), whose sum is σ = 72749115801600. Its totient is φ = 7793329609152.

The previous prime is 27278786028727. The next prime is 27278786028751. The reversal of 27278786028732 is 23782068787272.

It is a congruent number.

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, 11611323 + ... + 13761554.

It is an arithmetic number, because the mean of its divisors is an integer number (1515606579200).

Almost surely, 2^{27278786028732} is an apocalyptic number.

It is an amenable number.

27278786028732 is an abundant number, since it is smaller than the sum of its proper divisors (45470329772868).

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

27278786028732 is a wasteful number, since it uses less digits than its factorization.

27278786028732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25385690 (or 25385688 counting only the distinct ones).

The product of its (nonzero) digits is 354041856, while the sum is 69.

The spelling of 27278786028732 in words is "twenty-seven trillion, two hundred seventy-eight billion, seven hundred eighty-six million, twenty-eight thousand, seven hundred thirty-two".