43023433646 has 4 divisors (see below), whose sum is σ = 64535150472. Its totient is φ = 21511716822.

The previous prime is 43023433643. The next prime is 43023433657. The reversal of 43023433646 is 64633432034.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43023433643) 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 as a sum of consecutive naturals, namely, 10755858410 + ... + 10755858413.

It is an arithmetic number, because the mean of its divisors is an integer number (16133787618).

Almost surely, 2^43023433646 is an apocalyptic number.

43023433646 is a deficient number, since it is larger than the sum of its proper divisors (21511716826).

43023433646 is a wasteful number, since it uses less digits than its factorization.

43023433646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21511716825.

The product of its (nonzero) digits is 373248, while the sum is 38.

The spelling of 43023433646 in words is "forty-three billion, twenty-three million, four hundred thirty-three thousand, six hundred forty-six".