1978482272832 has 560 divisors, whose sum is σ = 6606643583232. Its totient is φ = 580878397440.

The previous prime is 1978482272807. The next prime is 1978482272849. The reversal of 1978482272832 is 2382722848791.

1978482272832 is a `hidden beast` number, since 1 + 9 + 7 + 8 + 482 + 2 + 72 + 83 + 2 = 666.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1978482272832.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 754856482 + ... + 754859102.

Almost surely, 2^{1978482272832} is an apocalyptic number.

1978482272832 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1978482272832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3303321791616).

1978482272832 is an abundant number, since it is smaller than the sum of its proper divisors (4628161310400).

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

1978482272832 is a wasteful number, since it uses less digits than its factorization.

1978482272832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3168 (or 3149 counting only the distinct ones).

The product of its digits is 43352064, while the sum is 63.

The spelling of 1978482272832 in words is "one trillion, nine hundred seventy-eight billion, four hundred eighty-two million, two hundred seventy-two thousand, eight hundred thirty-two".