27726730540 has 24 divisors (see below), whose sum is σ = 58238177760. Its totient is φ = 11088398208.

The previous prime is 27726730531. The next prime is 27726730583. The reversal of 27726730540 is 4503762772.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42537 + ... + 239296.

It is an arithmetic number, because the mean of its divisors is an integer number (2426590740).

Almost surely, 2^27726730540 is an apocalyptic number.

27726730540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27726730540 is an abundant number, since it is smaller than the sum of its proper divisors (30511447220).

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

27726730540 is a wasteful number, since it uses less digits than its factorization.

27726730540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286761 (or 286759 counting only the distinct ones).

The product of its (nonzero) digits is 493920, while the sum is 43.

The spelling of 27726730540 in words is "twenty-seven billion, seven hundred twenty-six million, seven hundred thirty thousand, five hundred forty".