23436543140 has 48 divisors (see below), whose sum is σ = 50951300400. Its totient is φ = 9044700672.

The previous prime is 23436543133. The next prime is 23436543199. The reversal of 23436543140 is 4134563432.

It can be written as a sum of positive squares in 8 ways, for example, as 3274815076 + 20161728064 = 57226^2 + 141992^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 23436543140.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 814682 + ... + 842958.

It is an arithmetic number, because the mean of its divisors is an integer number (1061485425).

Almost surely, 2^23436543140 is an apocalyptic number.

23436543140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23436543140 is an abundant number, since it is smaller than the sum of its proper divisors (27514757260).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23436543140 is a wasteful number, since it uses less digits than its factorization.

23436543140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29744 (or 29742 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 35.

The spelling of 23436543140 in words is "twenty-three billion, four hundred thirty-six million, five hundred forty-three thousand, one hundred forty".