232687728506 has 16 divisors (see below), whose sum is σ = 349641256104. Its totient is φ = 116140737024.

The previous prime is 232687728479. The next prime is 232687728517. The reversal of 232687728506 is 605827786232.

It can be written as a sum of positive squares in 4 ways, for example, as 220093277881 + 12594450625 = 469141^2 + 112225^2 .

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, 5493746 + ... + 5535938.

Almost surely, 2^232687728506 is an apocalyptic number.

232687728506 is a deficient number, since it is larger than the sum of its proper divisors (116953527598).

232687728506 is a wasteful number, since it uses less digits than its factorization.

232687728506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46945.

The product of its (nonzero) digits is 13547520, while the sum is 56.

The spelling of 232687728506 in words is "two hundred thirty-two billion, six hundred eighty-seven million, seven hundred twenty-eight thousand, five hundred six".