27732549540 has 48 divisors (see below), whose sum is σ = 78363552960. Its totient is φ = 7327497600.

The previous prime is 27732549539. The next prime is 27732549541. The reversal of 27732549540 is 4594523772.

It is an interprime number because it is at equal distance from previous prime (27732549539) and next prime (27732549541).

It is a self number, because there is not a number n which added to its sum of digits gives 27732549540.

It is not an unprimeable number, because it can be changed into a prime (27732549541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2113686 + ... + 2126765.

It is an arithmetic number, because the mean of its divisors is an integer number (1632574020).

Almost surely, 2^27732549540 is an apocalyptic number.

27732549540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27732549540 is an abundant number, since it is smaller than the sum of its proper divisors (50631003420).

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

27732549540 is a wasteful number, since it uses less digits than its factorization.

27732549540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4240572 (or 4240570 counting only the distinct ones).

The product of its (nonzero) digits is 2116800, while the sum is 48.

The spelling of 27732549540 in words is "twenty-seven billion, seven hundred thirty-two million, five hundred forty-nine thousand, five hundred forty".