42423173044 has 48 divisors (see below), whose sum is σ = 87945379200. Its totient is φ = 17519757696.

The previous prime is 42423172993. The next prime is 42423173053. The reversal of 42423173044 is 44037132424.

It is a super-2 number, since 2×42423173044² (a number of 22 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 15 ways as a sum of consecutive naturals, for example, 361987 + ... + 464629.

It is an arithmetic number, because the mean of its divisors is an integer number (1832195400).

Almost surely, 2^42423173044 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42423173044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43972689600).

42423173044 is an abundant number, since it is smaller than the sum of its proper divisors (45522206156).

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

42423173044 is a wasteful number, since it uses less digits than its factorization.

42423173044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103192 (or 103190 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 34.

The spelling of 42423173044 in words is "forty-two billion, four hundred twenty-three million, one hundred seventy-three thousand, forty-four".