23781780263 has 4 divisors (see below), whose sum is σ = 23795302080. Its totient is φ = 23768258448.

The previous prime is 23781780257. The next prime is 23781780299. The reversal of 23781780263 is 36208718732.

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

It is a cyclic number.

It is not a de Polignac number, because 23781780263 - 2²⁸ = 23513344807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23781780163) 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, 6758270 + ... + 6761787.

It is an arithmetic number, because the mean of its divisors is an integer number (5948825520).

Almost surely, 2^23781780263 is an apocalyptic number.

23781780263 is a deficient number, since it is larger than the sum of its proper divisors (13521817).

23781780263 is a wasteful number, since it uses less digits than its factorization.

23781780263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13521816.

The product of its (nonzero) digits is 677376, while the sum is 47.

The spelling of 23781780263 in words is "twenty-three billion, seven hundred eighty-one million, seven hundred eighty thousand, two hundred sixty-three".