42423421122444 has 24 divisors (see below), whose sum is σ = 99043376056128. Its totient is φ = 14133227026000.

The previous prime is 42423421122427. The next prime is 42423421122461. The reversal of 42423421122444 is 44422112432424.

It is an interprime number because it is at equal distance from previous prime (42423421122427) and next prime (42423421122461).

It is a nude number because it is divisible by every one of its digits.

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, 989146182 + ... + 989189069.

It is an arithmetic number, because the mean of its divisors is an integer number (4126807335672).

Almost surely, 2^{42423421122444} is an apocalyptic number.

It is an amenable number.

42423421122444 is an abundant number, since it is smaller than the sum of its proper divisors (56619954933684).

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

42423421122444 is a wasteful number, since it uses less digits than its factorization.

42423421122444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1978337045 (or 1978337043 counting only the distinct ones).

The product of its digits is 393216, while the sum is 39.

Adding to 42423421122444 its reverse (44422112432424), we get a palindrome (86845533554868).

The spelling of 42423421122444 in words is "forty-two trillion, four hundred twenty-three billion, four hundred twenty-one million, one hundred twenty-two thousand, four hundred forty-four".