5899774778820 has 216 divisors, whose sum is σ = 19547904900888. Its totient is φ = 1431795133440.

The previous prime is 5899774778819. The next prime is 5899774778869. The reversal of 5899774778820 is 288774779985.

5899774778820 is a `hidden beast` number, since 58 + 9 + 9 + 77 + 477 + 8 + 8 + 20 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 100453499136 + 5799321279684 = 316944^2 + 2408178^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 5899774778820.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 11545864 + ... + 12046016.

Almost surely, 2^{5899774778820} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5899774778820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9773952450444).

5899774778820 is an abundant number, since it is smaller than the sum of its proper divisors (13648130122068).

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

5899774778820 is a wasteful number, since it uses less digits than its factorization.

5899774778820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500323 (or 500247 counting only the distinct ones).

The product of its (nonzero) digits is 3982970880, while the sum is 81.

The spelling of 5899774778820 in words is "five trillion, eight hundred ninety-nine billion, seven hundred seventy-four million, seven hundred seventy-eight thousand, eight hundred twenty".