42846222424021 has 4 divisors (see below), whose sum is σ = 44709101659872. Its totient is φ = 40983343188172.

The previous prime is 42846222424013. The next prime is 42846222424039. The reversal of 42846222424021 is 12042422264824.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42846222424021 - 2³ = 42846222424013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42846222421021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 931439617891 + ... + 931439617936.

It is an arithmetic number, because the mean of its divisors is an integer number (11177275414968).

Almost surely, 2^{42846222424021} is an apocalyptic number.

It is an amenable number.

42846222424021 is a deficient number, since it is larger than the sum of its proper divisors (1862879235851).

42846222424021 is a wasteful number, since it uses less digits than its factorization.

42846222424021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1862879235850.

The product of its (nonzero) digits is 786432, while the sum is 43.

Adding to 42846222424021 its reverse (12042422264824), we get a palindrome (54888644688845).

The spelling of 42846222424021 in words is "forty-two trillion, eight hundred forty-six billion, two hundred twenty-two million, four hundred twenty-four thousand, twenty-one".