5284199781 has 48 divisors (see below), whose sum is σ = 9160302720. Its totient is φ = 2949125760.

The previous prime is 5284199747. The next prime is 5284199861. The reversal of 5284199781 is 1879914825.

It is a happy number.

5284199781 is a `hidden beast` number, since 528 + 41 + 9 + 9 + 78 + 1 = 666.

It is not a de Polignac number, because 5284199781 - 2¹⁴ = 5284183397 is a prime.

It is a super-2 number, since 2×5284199781² = 55845534651040895922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5284199741) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 341901 + ... + 357021.

It is an arithmetic number, because the mean of its divisors is an integer number (190839640).

Almost surely, 2^5284199781 is an apocalyptic number.

It is an amenable number.

5284199781 is a deficient number, since it is larger than the sum of its proper divisors (3876102939).

5284199781 is a wasteful number, since it uses less digits than its factorization.

5284199781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15223 (or 15174 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 54.

The square root of 5284199781 is about 72692.5015458954. The cubic root of 5284199781 is about 1741.7791047862.

The spelling of 5284199781 in words is "five billion, two hundred eighty-four million, one hundred ninety-nine thousand, seven hundred eighty-one".