978585766704 has 1440 divisors, whose sum is σ = 3734047116800. Its totient is φ = 237527313408.

The previous prime is 978585766663. The next prime is 978585766709. The reversal of 978585766704 is 407667585879.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is not an unprimeable number, because it can be changed into a prime (978585766709) by changing a digit.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 14605757679 + ... + 14605757745.

Almost surely, 2^978585766704 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 978585766704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1867023558400).

978585766704 is an abundant number, since it is smaller than the sum of its proper divisors (2755461350096).

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

978585766704 is a wasteful number, since it uses less digits than its factorization.

978585766704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204 (or 158 counting only the distinct ones).

The product of its (nonzero) digits is 711244800, while the sum is 72.

The spelling of 978585766704 in words is "nine hundred seventy-eight billion, five hundred eighty-five million, seven hundred sixty-six thousand, seven hundred four".