978450871104 has 140 divisors (see below), whose sum is σ = 3314782869024. Its totient is φ = 279557381376.

The previous prime is 978450871093. The next prime is 978450871109. The reversal of 978450871104 is 401178054879.

978450871104 is a `hidden beast` number, since 9 + 7 + 8 + 450 + 87 + 1 + 104 = 666.

It is a super-2 number, since 2×978450871104² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (978450871109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 13445454 + ... + 13518029.

Almost surely, 2^978450871104 is an apocalyptic number.

It is an amenable number.

978450871104 is an abundant number, since it is smaller than the sum of its proper divisors (2336331997920).

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

978450871104 is a wasteful number, since it uses less digits than its factorization.

978450871104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26963514 (or 26963495 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 54.

The spelling of 978450871104 in words is "nine hundred seventy-eight billion, four hundred fifty million, eight hundred seventy-one thousand, one hundred four".