2043443426172 has 24 divisors (see below), whose sum is σ = 4768059314256. Its totient is φ = 681144286848.

The previous prime is 2043443426147. The next prime is 2043443426183. The reversal of 2043443426172 is 2716243443402.

It is a super-2 number, since 2×2043443426172² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3145678 + ... + 3739274.

It is an arithmetic number, because the mean of its divisors is an integer number (198669138094).

Almost surely, 2^{2043443426172} is an apocalyptic number.

It is an amenable number.

2043443426172 is an abundant number, since it is smaller than the sum of its proper divisors (2724615888084).

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

2043443426172 is a wasteful number, since it uses less digits than its factorization.

2043443426172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880477 (or 880475 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 42.

Adding to 2043443426172 its reverse (2716243443402), we get a palindrome (4759686869574).

The spelling of 2043443426172 in words is "two trillion, forty-three billion, four hundred forty-three million, four hundred twenty-six thousand, one hundred seventy-two".