978481850584 has 32 divisors (see below), whose sum is σ = 2164383820800. Its totient is φ = 405821964960.

The previous prime is 978481850569. The next prime is 978481850587. The reversal of 978481850584 is 485058184879.

It is a happy number.

It is a super-2 number, since 2×978481850584² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (978481850587) 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, 281819074 + ... + 281822545.

It is an arithmetic number, because the mean of its divisors is an integer number (67636994400).

Almost surely, 2^978481850584 is an apocalyptic number.

It is an amenable number.

978481850584 is an abundant number, since it is smaller than the sum of its proper divisors (1185901970216).

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

978481850584 is a wasteful number, since it uses less digits than its factorization.

978481850584 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563641663 (or 563641659 counting only the distinct ones).

The product of its (nonzero) digits is 103219200, while the sum is 67.

The spelling of 978481850584 in words is "nine hundred seventy-eight billion, four hundred eighty-one million, eight hundred fifty thousand, five hundred eighty-four".