27231135140 has 96 divisors (see below), whose sum is σ = 64666546560. Its totient is φ = 9541324800.

The previous prime is 27231135137. The next prime is 27231135167. The reversal of 27231135140 is 4153113272.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3332660 + ... + 3340820.

It is an arithmetic number, because the mean of its divisors is an integer number (673609860).

Almost surely, 2^27231135140 is an apocalyptic number.

27231135140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27231135140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32333273280).

27231135140 is an abundant number, since it is smaller than the sum of its proper divisors (37435411420).

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

27231135140 is a wasteful number, since it uses less digits than its factorization.

27231135140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8733 (or 8731 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The spelling of 27231135140 in words is "twenty-seven billion, two hundred thirty-one million, one hundred thirty-five thousand, one hundred forty".