909945269440 has 112 divisors (see below), whose sum is σ = 2305915156512. Its totient is φ = 340828307456.

The previous prime is 909945269437. The next prime is 909945269483. The reversal of 909945269440 is 44962549909.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 647139 + ... + 1496221.

Almost surely, 2^909945269440 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 909945269440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1152957578256).

909945269440 is an abundant number, since it is smaller than the sum of its proper divisors (1395969887072).

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

909945269440 is a wasteful number, since it uses less digits than its factorization.

909945269440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849314 (or 849304 counting only the distinct ones).

The product of its (nonzero) digits is 25194240, while the sum is 61.

The spelling of 909945269440 in words is "nine hundred nine billion, nine hundred forty-five million, two hundred sixty-nine thousand, four hundred forty".