42606990612 has 36 divisors (see below), whose sum is σ = 111175232896. Its totient is φ = 13744190160.

The previous prime is 42606990607. The next prime is 42606990649. The reversal of 42606990612 is 21609960624.

42606990612 is a `hidden beast` number, since 4 + 26 + 0 + 6 + 9 + 9 + 0 + 612 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×42606990612² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19088038 + ... + 19090269.

Almost surely, 2^42606990612 is an apocalyptic number.

It is an amenable number.

42606990612 is an abundant number, since it is smaller than the sum of its proper divisors (68568242284).

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

42606990612 is a wasteful number, since it uses less digits than its factorization.

42606990612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38178348 (or 38178343 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The spelling of 42606990612 in words is "forty-two billion, six hundred six million, nine hundred ninety thousand, six hundred twelve".