978267566322 has 42 divisors (see below), whose sum is σ = 2200180515327. Its totient is φ = 326076599916.

The previous prime is 978267566291. The next prime is 978267566363. The reversal of 978267566322 is 223665762879.

It is a happy number.

978267566322 is a `hidden beast` number, since 9 + 7 + 8 + 2 + 67 + 566 + 3 + 2 + 2 = 666.

978267566322 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 489133783161 + 489133783161 = 699381^2 + 699381^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=699381.

It is a self number, because there is not a number n which added to its sum of digits gives 978267566322.

It is an unprimeable number.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 37753623 + ... + 37779525.

Almost surely, 2^978267566322 is an apocalyptic number.

978267566322 is an abundant number, since it is smaller than the sum of its proper divisors (1221912949005).

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

978267566322 is an frugal number, since it uses more digits than its factorization.

978267566322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51826 (or 25908 counting only the distinct ones).

The product of its digits is 91445760, while the sum is 63.

The spelling of 978267566322 in words is "nine hundred seventy-eight billion, two hundred sixty-seven million, five hundred sixty-six thousand, three hundred twenty-two".