27723565740 has 48 divisors (see below), whose sum is σ = 83597215968. Its totient is φ = 6824262144.

The previous prime is 27723565739. The next prime is 27723565787. The reversal of 27723565740 is 4756532772.

It is a self number, because there is not a number n which added to its sum of digits gives 27723565740.

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, 17770737 + ... + 17772296.

It is an arithmetic number, because the mean of its divisors is an integer number (1741608666).

Almost surely, 2^27723565740 is an apocalyptic number.

27723565740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27723565740 is an abundant number, since it is smaller than the sum of its proper divisors (55873650228).

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

27723565740 is a wasteful number, since it uses less digits than its factorization.

27723565740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35543058 (or 35543056 counting only the distinct ones).

The product of its (nonzero) digits is 2469600, while the sum is 48.

The spelling of 27723565740 in words is "twenty-seven billion, seven hundred twenty-three million, five hundred sixty-five thousand, seven hundred forty".