43431025235052 has 96 divisors (see below), whose sum is σ = 124727402179072. Its totient is φ = 11454115309056.

The previous prime is 43431025235033. The next prime is 43431025235053. The reversal of 43431025235052 is 25053252013434.

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

It is a self number, because there is not a number n which added to its sum of digits gives 43431025235052.

It is not an unprimeable number, because it can be changed into a prime (43431025235053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 60683763 + ... + 61395285.

Almost surely, 2^{43431025235052} is an apocalyptic number.

43431025235052 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

43431025235052 is an abundant number, since it is smaller than the sum of its proper divisors (81296376944020).

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

43431025235052 is a wasteful number, since it uses less digits than its factorization.

43431025235052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767447 (or 767445 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 39.

Adding to 43431025235052 its reverse (25053252013434), we get a palindrome (68484277248486).

The spelling of 43431025235052 in words is "forty-three trillion, four hundred thirty-one billion, twenty-five million, two hundred thirty-five thousand, fifty-two".