23772330261 has 24 divisors (see below), whose sum is σ = 34666107840. Its totient is φ = 15697374336.

The previous prime is 23772330223. The next prime is 23772330287. The reversal of 23772330261 is 16203327732.

23772330261 is a `hidden beast` number, since 2 + 377 + 23 + 3 + 0 + 261 = 666.

It is not a de Polignac number, because 23772330261 - 2³¹ = 21624846613 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23772330761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 397405 + ... + 453293.

It is an arithmetic number, because the mean of its divisors is an integer number (1444421160).

Almost surely, 2^23772330261 is an apocalyptic number.

It is an amenable number.

23772330261 is a deficient number, since it is larger than the sum of its proper divisors (10893777579).

23772330261 is a wasteful number, since it uses less digits than its factorization.

23772330261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56345 (or 56342 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 36.

Adding to 23772330261 its reverse (16203327732), we get a palindrome (39975657993).

The spelling of 23772330261 in words is "twenty-three billion, seven hundred seventy-two million, three hundred thirty thousand, two hundred sixty-one".