231740028687 has 8 divisors (see below), whose sum is σ = 309656959920. Its totient is φ = 154158224960.

The previous prime is 231740028671. The next prime is 231740028697. The reversal of 231740028687 is 786820047132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 231740028687 - 2⁴ = 231740028671 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231740028697) 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, 83780262 + ... + 83783027.

It is an arithmetic number, because the mean of its divisors is an integer number (38707119990).

Almost surely, 2^231740028687 is an apocalyptic number.

231740028687 is a deficient number, since it is larger than the sum of its proper divisors (77916931233).

231740028687 is a wasteful number, since it uses less digits than its factorization.

231740028687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167563753.

The product of its (nonzero) digits is 903168, while the sum is 48.

The spelling of 231740028687 in words is "two hundred thirty-one billion, seven hundred forty million, twenty-eight thousand, six hundred eighty-seven".