231712027648 has 22 divisors (see below), whose sum is σ = 463197776066. Its totient is φ = 115856013312.

The previous prime is 231712027643. The next prime is 231712027649. The reversal of 231712027648 is 846720217132.

It can be written as a sum of positive squares in only one way, i.e., 181162599424 + 50549428224 = 425632^2 + 224832^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231712027643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113139615 + ... + 113141662.

Almost surely, 2^231712027648 is an apocalyptic number.

It is an amenable number.

231712027648 is a deficient number, since it is larger than the sum of its proper divisors (231485748418).

231712027648 is an equidigital number, since it uses as much as digits as its factorization.

231712027648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226281297 (or 226281279 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 43.

The spelling of 231712027648 in words is "two hundred thirty-one billion, seven hundred twelve million, twenty-seven thousand, six hundred forty-eight".