43021243622851 has 8 divisors (see below), whose sum is σ = 46342961273840. Its totient is φ = 39701296145952.

The previous prime is 43021243622837. The next prime is 43021243622867. The reversal of 43021243622851 is 15822634212034.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 43021243622851 - 2³⁹ = 42471487808963 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43021243622798 and 43021243622807.

It is not an unprimeable number, because it can be changed into a prime (43021243622891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 442493040 + ... + 442590253.

It is an arithmetic number, because the mean of its divisors is an integer number (5792870159230).

Almost surely, 2^{43021243622851} is an apocalyptic number.

43021243622851 is a deficient number, since it is larger than the sum of its proper divisors (3321717650989).

43021243622851 is a wasteful number, since it uses less digits than its factorization.

43021243622851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 885087045.

The product of its (nonzero) digits is 552960, while the sum is 43.

Adding to 43021243622851 its reverse (15822634212034), we get a palindrome (58843877834885).

The spelling of 43021243622851 in words is "forty-three trillion, twenty-one billion, two hundred forty-three million, six hundred twenty-two thousand, eight hundred fifty-one".