23780181261 has 8 divisors (see below), whose sum is σ = 32480247744. Its totient is φ = 15466784480.

The previous prime is 23780181259. The next prime is 23780181263. The reversal of 23780181261 is 16218108732.

It is an interprime number because it is at equal distance from previous prime (23780181259) and next prime (23780181263).

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 23780181261 - 2¹ = 23780181259 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23780181263) 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, 96667281 + ... + 96667526.

It is an arithmetic number, because the mean of its divisors is an integer number (4060030968).

Almost surely, 2^23780181261 is an apocalyptic number.

It is an amenable number.

23780181261 is a deficient number, since it is larger than the sum of its proper divisors (8700066483).

23780181261 is a wasteful number, since it uses less digits than its factorization.

23780181261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193334851.

The product of its (nonzero) digits is 32256, while the sum is 39.

Adding to 23780181261 its reverse (16218108732), we get a palindrome (39998289993).

The spelling of 23780181261 in words is "twenty-three billion, seven hundred eighty million, one hundred eighty-one thousand, two hundred sixty-one".