27312116540 has 24 divisors (see below), whose sum is σ = 57912298080. Its totient is φ = 10818779328.

The previous prime is 27312116537. The next prime is 27312116549. The reversal of 27312116540 is 4561121372.

It is a junction number, because it is equal to n+sod(n) for n = 27312116497 and 27312116506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27312116549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6627095 + ... + 6631214.

It is an arithmetic number, because the mean of its divisors is an integer number (2413012420).

Almost surely, 2^27312116540 is an apocalyptic number.

27312116540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27312116540 is an abundant number, since it is smaller than the sum of its proper divisors (30600181540).

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

27312116540 is a wasteful number, since it uses less digits than its factorization.

27312116540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13258421 (or 13258419 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The spelling of 27312116540 in words is "twenty-seven billion, three hundred twelve million, one hundred sixteen thousand, five hundred forty".