42107223891042 has 24 divisors (see below), whose sum is σ = 92135608716060. Its totient is φ = 13896773560800.

The previous prime is 42107223891013. The next prime is 42107223891043. The reversal of 42107223891042 is 24019832270124.

42107223891042 is a `hidden beast` number, since 4 + 210 + 7 + 2 + 2 + 389 + 10 + 42 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 34960482482121 + 7146741408921 = 5912739^2 + 2673339^2 .

It is not an unprimeable number, because it can be changed into a prime (42107223891043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11580642817 + ... + 11580646452.

Almost surely, 2^{42107223891042} is an apocalyptic number.

42107223891042 is an abundant number, since it is smaller than the sum of its proper divisors (50028384825018).

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

42107223891042 is a wasteful number, since it uses less digits than its factorization.

42107223891042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23161289378 (or 23161289375 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 42107223891042 in words is "forty-two trillion, one hundred seven billion, two hundred twenty-three million, eight hundred ninety-one thousand, forty-two".