27606749540 has 12 divisors (see below), whose sum is σ = 57974174076. Its totient is φ = 11042699808.

The previous prime is 27606749539. The next prime is 27606749593. The reversal of 27606749540 is 4594760672.

It can be written as a sum of positive squares in 2 ways, for example, as 9563275264 + 18043474276 = 97792^2 + 134326^2 .

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 690168719 + ... + 690168758.

It is an arithmetic number, because the mean of its divisors is an integer number (4831181173).

Almost surely, 2^27606749540 is an apocalyptic number.

27606749540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27606749540 is an abundant number, since it is smaller than the sum of its proper divisors (30367424536).

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

27606749540 is a wasteful number, since it uses less digits than its factorization.

27606749540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1380337486 (or 1380337484 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 50.

The spelling of 27606749540 in words is "twenty-seven billion, six hundred six million, seven hundred forty-nine thousand, five hundred forty".