232780569779 has 4 divisors (see below), whose sum is σ = 232802060784. Its totient is φ = 232759078776.

The previous prime is 232780569767. The next prime is 232780569811. The reversal of 232780569779 is 977965087232.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-232780569779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (232780569979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10729247 + ... + 10750920.

It is an arithmetic number, because the mean of its divisors is an integer number (58200515196).

Almost surely, 2^232780569779 is an apocalyptic number.

232780569779 is a deficient number, since it is larger than the sum of its proper divisors (21491005).

232780569779 is a wasteful number, since it uses less digits than its factorization.

232780569779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21491004.

The product of its (nonzero) digits is 80015040, while the sum is 65.

The spelling of 232780569779 in words is "two hundred thirty-two billion, seven hundred eighty million, five hundred sixty-nine thousand, seven hundred seventy-nine".