27507575740 has 12 divisors (see below), whose sum is σ = 57765909096. Its totient is φ = 11003030288.

The previous prime is 27507575737. The next prime is 27507575749. The reversal of 27507575740 is 4757570572.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27507575749) by changing a digit.

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, 687689374 + ... + 687689413.

It is an arithmetic number, because the mean of its divisors is an integer number (4813825758).

Almost surely, 2^27507575740 is an apocalyptic number.

27507575740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27507575740 is an abundant number, since it is smaller than the sum of its proper divisors (30258333356).

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

27507575740 is a wasteful number, since it uses less digits than its factorization.

27507575740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1375378796 (or 1375378794 counting only the distinct ones).

The product of its (nonzero) digits is 2401000, while the sum is 49.

The spelling of 27507575740 in words is "twenty-seven billion, five hundred seven million, five hundred seventy-five thousand, seven hundred forty".