43642952233 has 2 divisors, whose sum is σ = 43642952234. Its totient is φ = 43642952232.

The previous prime is 43642952231. The next prime is 43642952267. The reversal of 43642952233 is 33225924634.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33552347929 + 10090604304 = 183173^2 + 100452^2 .

It is a cyclic number.

It is not a de Polignac number, because 43642952233 - 2¹ = 43642952231 is a prime.

It is a super-2 number, since 2×43642952233² (a number of 22 digits) contains 22 as substring.

Together with 43642952231, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 43642952233.

It is not a weakly prime, because it can be changed into another prime (43642952231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21821476116 + 21821476117.

It is an arithmetic number, because the mean of its divisors is an integer number (21821476117).

Almost surely, 2^43642952233 is an apocalyptic number.

It is an amenable number.

43642952233 is a deficient number, since it is larger than the sum of its proper divisors (1).

43642952233 is an equidigital number, since it uses as much as digits as its factorization.

43642952233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 933120, while the sum is 43.

The spelling of 43642952233 in words is "forty-three billion, six hundred forty-two million, nine hundred fifty-two thousand, two hundred thirty-three".