42177115922 has 6 divisors (see below), whose sum is σ = 63266109543. Its totient is φ = 21088412742.

The previous prime is 42177115913. The next prime is 42177115943. The reversal of 42177115922 is 22951177124.

It can be written as a sum of positive squares in only one way, i.e., 21088557961 + 21088557961 = 145219^2 + 145219^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=145219.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42177115922.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 217829 + ... + 363047.

Almost surely, 2^42177115922 is an apocalyptic number.

42177115922 is a deficient number, since it is larger than the sum of its proper divisors (21088993621).

42177115922 is an frugal number, since it uses more digits than its factorization.

42177115922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290440 (or 145221 counting only the distinct ones).

The product of its digits is 70560, while the sum is 41.

The spelling of 42177115922 in words is "forty-two billion, one hundred seventy-seven million, one hundred fifteen thousand, nine hundred twenty-two".