978682764745 has 32 divisors (see below), whose sum is σ = 1356767193600. Its totient is φ = 663824747520.

The previous prime is 978682764727. The next prime is 978682764767. The reversal of 978682764745 is 547467286879.

It is not a de Polignac number, because 978682764745 - 2⁹ = 978682764233 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3021931 + ... + 3330079.

It is an arithmetic number, because the mean of its divisors is an integer number (42398974800).

Almost surely, 2^978682764745 is an apocalyptic number.

It is an amenable number.

978682764745 is a deficient number, since it is larger than the sum of its proper divisors (378084428855).

978682764745 is a wasteful number, since it uses less digits than its factorization.

978682764745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309145.

The product of its digits is 1137991680, while the sum is 73.

The spelling of 978682764745 in words is "nine hundred seventy-eight billion, six hundred eighty-two million, seven hundred sixty-four thousand, seven hundred forty-five".