42139140606 has 24 divisors (see below), whose sum is σ = 94449799080. Its totient is φ = 13562022096.

The previous prime is 42139140601. The next prime is 42139140613. The reversal of 42139140606 is 60604193124.

42139140606 is a `hidden beast` number, since 4 + 2 + 1 + 3 + 9 + 1 + 40 + 606 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42139140601) 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, 40362640 + ... + 40363683.

It is an arithmetic number, because the mean of its divisors is an integer number (3935408295).

Almost surely, 2^42139140606 is an apocalyptic number.

42139140606 is an abundant number, since it is smaller than the sum of its proper divisors (52310658474).

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

42139140606 is a wasteful number, since it uses less digits than its factorization.

42139140606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80726360 (or 80726357 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The spelling of 42139140606 in words is "forty-two billion, one hundred thirty-nine million, one hundred forty thousand, six hundred six".