42443222431432 has 16 divisors (see below), whose sum is σ = 79581174327900. Its totient is φ = 21221575944000.

The previous prime is 42443222431429. The next prime is 42443222431433. The reversal of 42443222431432 is 23413422234424.

It can be written as a sum of positive squares in 2 ways, for example, as 31249821743716 + 11193400687716 = 5590154^2 + 3345654^2 .

It is not an unprimeable number, because it can be changed into a prime (42443222431433) 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, 1111794 + ... + 9280222.

Almost surely, 2^{42443222431432} is an apocalyptic number.

It is an amenable number.

42443222431432 is a deficient number, since it is larger than the sum of its proper divisors (37137951896468).

42443222431432 is a wasteful number, since it uses less digits than its factorization.

42443222431432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8817936 (or 8817932 counting only the distinct ones).

The product of its digits is 884736, while the sum is 40.

Adding to 42443222431432 its reverse (23413422234424), we get a palindrome (65856644665856).

The spelling of 42443222431432 in words is "forty-two trillion, four hundred forty-three billion, two hundred twenty-two million, four hundred thirty-one thousand, four hundred thirty-two".