785044998440 has 32 divisors (see below), whose sum is σ = 1771086806280. Its totient is φ = 313176122112.

The previous prime is 785044998407. The next prime is 785044998449. The reversal of 785044998440 is 44899440587.

It can be written as a sum of positive squares in 4 ways, for example, as 745732419364 + 39312579076 = 863558^2 + 198274^2 .

It is not an unprimeable number, because it can be changed into a prime (785044998449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26293559 + ... + 26323398.

Almost surely, 2^785044998440 is an apocalyptic number.

It is an amenable number.

785044998440 is an abundant number, since it is smaller than the sum of its proper divisors (986041807840).

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

785044998440 is a wasteful number, since it uses less digits than its factorization.

785044998440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52617341 (or 52617337 counting only the distinct ones).

The product of its (nonzero) digits is 46448640, while the sum is 62.

The spelling of 785044998440 in words is "seven hundred eighty-five billion, forty-four million, nine hundred ninety-eight thousand, four hundred forty".