23464156543 has 4 divisors (see below), whose sum is σ = 23464484728. Its totient is φ = 23463828360.

The previous prime is 23464156511. The next prime is 23464156549. The reversal of 23464156543 is 34565146432.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 23464156543 - 2⁵ = 23464156511 is a prime.

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 23464156543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23464156549) 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, 6213 + ... + 216718.

It is an arithmetic number, because the mean of its divisors is an integer number (5866121182).

Almost surely, 2^23464156543 is an apocalyptic number.

23464156543 is a deficient number, since it is larger than the sum of its proper divisors (328185).

23464156543 is a wasteful number, since it uses less digits than its factorization.

23464156543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328184.

The product of its digits is 1036800, while the sum is 43.

The spelling of 23464156543 in words is "twenty-three billion, four hundred sixty-four million, one hundred fifty-six thousand, five hundred forty-three".