27137604540 has 24 divisors (see below), whose sum is σ = 75985292880. Its totient is φ = 7236694528.

The previous prime is 27137604521. The next prime is 27137604547. The reversal of 27137604540 is 4540673172.

It is a super-2 number, since 2×27137604540² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27137604547) 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, 226146645 + ... + 226146764.

It is an arithmetic number, because the mean of its divisors is an integer number (3166053870).

Almost surely, 2^27137604540 is an apocalyptic number.

27137604540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27137604540 is an abundant number, since it is smaller than the sum of its proper divisors (48847688340).

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

27137604540 is a wasteful number, since it uses less digits than its factorization.

27137604540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452293421 (or 452293419 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 39.

The spelling of 27137604540 in words is "twenty-seven billion, one hundred thirty-seven million, six hundred four thousand, five hundred forty".