7982780894830 has 64 divisors (see below), whose sum is σ = 17377056811008. Its totient is φ = 2581082824320.

The previous prime is 7982780894789. The next prime is 7982780894849. The reversal of 7982780894830 is 384980872897.

It is a Smith number, since the sum of its digits (73) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34802937 + ... + 35031556.

It is an arithmetic number, because the mean of its divisors is an integer number (271516512672).

Almost surely, 2^{7982780894830} is an apocalyptic number.

7982780894830 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

7982780894830 is an abundant number, since it is smaller than the sum of its proper divisors (9394275916178).

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

7982780894830 is a wasteful number, since it uses less digits than its factorization.

7982780894830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69834601.

The product of its (nonzero) digits is 390168576, while the sum is 73.

The spelling of 7982780894830 in words is "seven trillion, nine hundred eighty-two billion, seven hundred eighty million, eight hundred ninety-four thousand, eight hundred thirty".