231727981088 has 54 divisors (see below), whose sum is σ = 467306970039. Its totient is φ = 113112293952.

The previous prime is 231727981039. The next prime is 231727981117. The reversal of 231727981088 is 880189727132.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 115863990544 + 115863990544 = 340388^2 + 340388^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=340388.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 117092483 + ... + 117094461.

Almost surely, 2^231727981088 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231727981088

231727981088 is an abundant number, since it is smaller than the sum of its proper divisors (235578988951).

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

231727981088 is an frugal number, since it uses more digits than its factorization.

231727981088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4054 (or 2024 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 56.

The spelling of 231727981088 in words is "two hundred thirty-one billion, seven hundred twenty-seven million, nine hundred eighty-one thousand, eighty-eight".