909433805136 has 160 divisors (see below), whose sum is σ = 2448990754560. Its totient is φ = 290456420352.

The previous prime is 909433805131. The next prime is 909433805149. The reversal of 909433805136 is 631508334909.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (909433805131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 156445366 + ... + 156451178.

It is an arithmetic number, because the mean of its divisors is an integer number (15306192216).

Almost surely, 2^909433805136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 909433805136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1224495377280).

909433805136 is an abundant number, since it is smaller than the sum of its proper divisors (1539556949424).

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

909433805136 is a wasteful number, since it uses less digits than its factorization.

909433805136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6693 (or 6687 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 51.

The spelling of 909433805136 in words is "nine hundred nine billion, four hundred thirty-three million, eight hundred five thousand, one hundred thirty-six".