42180558344 has 8 divisors (see below), whose sum is σ = 79088546910. Its totient is φ = 21090279168.

The previous prime is 42180558281. The next prime is 42180558361. The reversal of 42180558344 is 44385508124.

It can be written as a sum of positive squares in only one way, i.e., 31226424100 + 10954134244 = 176710^2 + 104662^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 42180558295 and 42180558304.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2636284889 + ... + 2636284904.

Almost surely, 2^42180558344 is an apocalyptic number.

It is an amenable number.

42180558344 is a deficient number, since it is larger than the sum of its proper divisors (36907988566).

42180558344 is a wasteful number, since it uses less digits than its factorization.

42180558344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5272569799 (or 5272569795 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 44.

The spelling of 42180558344 in words is "forty-two billion, one hundred eighty million, five hundred fifty-eight thousand, three hundred forty-four".