785444446420 has 96 divisors (see below), whose sum is σ = 1764288449280. Its totient is φ = 292995056640.

The previous prime is 785444446399. The next prime is 785444446439. The reversal of 785444446420 is 24644444587.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30408271 + ... + 30434089.

It is an arithmetic number, because the mean of its divisors is an integer number (18378004680).

Almost surely, 2^785444446420 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 785444446420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (882144224640).

785444446420 is an abundant number, since it is smaller than the sum of its proper divisors (978844002860).

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

785444446420 is a wasteful number, since it uses less digits than its factorization.

785444446420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27505 (or 27503 counting only the distinct ones).

The product of its (nonzero) digits is 13762560, while the sum is 52.

The spelling of 785444446420 in words is "seven hundred eighty-five billion, four hundred forty-four million, four hundred forty-six thousand, four hundred twenty".