232780688640 has 108 divisors (see below), whose sum is σ = 805396974564. Its totient is φ = 62074847232.

The previous prime is 232780688633. The next prime is 232780688653. The reversal of 232780688640 is 46886087232.

It can be written as a sum of positive squares in 2 ways, for example, as 145325638656 + 87455049984 = 381216^2 + 295728^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10091809 + ... + 10114848.

Almost surely, 2^232780688640 is an apocalyptic number.

232780688640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

232780688640 is an abundant number, since it is smaller than the sum of its proper divisors (572616285924).

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

232780688640 is a wasteful number, since it uses less digits than its factorization.

232780688640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20206684 (or 20206667 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 54.

The spelling of 232780688640 in words is "two hundred thirty-two billion, seven hundred eighty million, six hundred eighty-eight thousand, six hundred forty".