23232575781 has 24 divisors (see below), whose sum is σ = 34309177344. Its totient is φ = 15142475040.

The previous prime is 23232575777. The next prime is 23232575797. The reversal of 23232575781 is 18757523232.

23232575781 is a `hidden beast` number, since 2 + 3 + 2 + 3 + 2 + 575 + 78 + 1 = 666.

It is not a de Polignac number, because 23232575781 - 2² = 23232575777 is a prime.

It is a super-2 number, since 2×23232575781² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23232575741) 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, 368860 + ... + 427226.

It is an arithmetic number, because the mean of its divisors is an integer number (1429549056).

Almost surely, 2^23232575781 is an apocalyptic number.

It is an amenable number.

23232575781 is a deficient number, since it is larger than the sum of its proper divisors (11076601563).

23232575781 is a wasteful number, since it uses less digits than its factorization.

23232575781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59361 (or 59358 counting only the distinct ones).

The product of its digits is 705600, while the sum is 45.

The spelling of 23232575781 in words is "twenty-three billion, two hundred thirty-two million, five hundred seventy-five thousand, seven hundred eighty-one".