985385408984 has 16 divisors (see below), whose sum is σ = 1882457975520. Its totient is φ = 483396615520.

The previous prime is 985385408951. The next prime is 985385408989. The reversal of 985385408984 is 489804583589.

985385408984 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (985385408989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1162010672 + ... + 1162011519.

It is an arithmetic number, because the mean of its divisors is an integer number (117653623470).

Almost surely, 2^985385408984 is an apocalyptic number.

It is an amenable number.

985385408984 is a deficient number, since it is larger than the sum of its proper divisors (897072566536).

985385408984 is a wasteful number, since it uses less digits than its factorization.

985385408984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2324022250 (or 2324022246 counting only the distinct ones).

The product of its (nonzero) digits is 398131200, while the sum is 71.

The spelling of 985385408984 in words is "nine hundred eighty-five billion, three hundred eighty-five million, four hundred eight thousand, nine hundred eighty-four".