983770389904 has 45 divisors (see below), whose sum is σ = 1992715057249. Its totient is φ = 470455240640.

The previous prime is 983770389887. The next prime is 983770389919. The reversal of 983770389904 is 409983077389.

The square root of 983770389904 is 991852.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 282866549904 + 700903840000 = 531852^2 + 837200^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 983770389904.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 91244994 + ... + 91255774.

Almost surely, 2^983770389904 is an apocalyptic number.

983770389904 is the 991852-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 983770389904

983770389904 is an abundant number, since it is smaller than the sum of its proper divisors (1008944667345).

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

983770389904 is an frugal number, since it uses more digits than its factorization.

983770389904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21616 (or 10806 counting only the distinct ones).

The product of its (nonzero) digits is 82301184, while the sum is 67.

The spelling of 983770389904 in words is "nine hundred eighty-three billion, seven hundred seventy million, three hundred eighty-nine thousand, nine hundred four".