27145375340 has 24 divisors (see below), whose sum is σ = 57028974912. Its totient is φ = 10853638400.

The previous prime is 27145375331. The next prime is 27145375421. The reversal of 27145375340 is 4357354172.

It is a happy number.

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, 232436 + ... + 329115.

It is an arithmetic number, because the mean of its divisors is an integer number (2376207288).

Almost surely, 2^27145375340 is an apocalyptic number.

27145375340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27145375340 is an abundant number, since it is smaller than the sum of its proper divisors (29883599572).

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

27145375340 is a wasteful number, since it uses less digits than its factorization.

27145375340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563977 (or 563975 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 41.

The spelling of 27145375340 in words is "twenty-seven billion, one hundred forty-five million, three hundred seventy-five thousand, three hundred forty".