42909086136 has 32 divisors (see below), whose sum is σ = 122597389440. Its totient is φ = 12259738848.

The previous prime is 42909086123. The next prime is 42909086153. The reversal of 42909086136 is 63168090924.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127705446 + ... + 127705781.

It is an arithmetic number, because the mean of its divisors is an integer number (3831168420).

Almost surely, 2^42909086136 is an apocalyptic number.

It is an amenable number.

42909086136 is an abundant number, since it is smaller than the sum of its proper divisors (79688303304).

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

42909086136 is a wasteful number, since it uses less digits than its factorization.

42909086136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255411243 (or 255411239 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 48.

The spelling of 42909086136 in words is "forty-two billion, nine hundred nine million, eighty-six thousand, one hundred thirty-six".