23054936781 has 4 divisors (see below), whose sum is σ = 30739915712. Its totient is φ = 15369957852.

The previous prime is 23054936759. The next prime is 23054936789. The reversal of 23054936781 is 18763945032.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 23054936781 - 2¹⁸ = 23054674637 is a prime.

It is a super-2 number, since 2×23054936781² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23054936781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23054936789) 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, 3842489461 + ... + 3842489466.

It is an arithmetic number, because the mean of its divisors is an integer number (7684978928).

It is a 2-persistent number, because it is pandigital, and so is 2⋅23054936781 = 46109873562, but 3⋅23054936781 = 69164810343 is not.

Almost surely, 2^23054936781 is an apocalyptic number.

It is an amenable number.

23054936781 is a deficient number, since it is larger than the sum of its proper divisors (7684978931).

23054936781 is an equidigital number, since it uses as much as digits as its factorization.

23054936781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7684978930.

The product of its (nonzero) digits is 1088640, while the sum is 48.

The spelling of 23054936781 in words is "twenty-three billion, fifty-four million, nine hundred thirty-six thousand, seven hundred eighty-one".