23437242543 has 32 divisors (see below), whose sum is σ = 36798354432. Its totient is φ = 13081219200.

The previous prime is 23437242509. The next prime is 23437242547. The reversal of 23437242543 is 34524273432.

It is not a de Polignac number, because 23437242543 - 2²² = 23433048239 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23437242547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 121521 + ... + 248277.

It is an arithmetic number, because the mean of its divisors is an integer number (1149948576).

Almost surely, 2^23437242543 is an apocalyptic number.

23437242543 is a deficient number, since it is larger than the sum of its proper divisors (13361111889).

23437242543 is a wasteful number, since it uses less digits than its factorization.

23437242543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127215.

The product of its digits is 483840, while the sum is 39.

The spelling of 23437242543 in words is "twenty-three billion, four hundred thirty-seven million, two hundred forty-two thousand, five hundred forty-three".