5781273420 has 48 divisors (see below), whose sum is σ = 17432765280. Its totient is φ = 1423082496.

The previous prime is 5781273401. The next prime is 5781273427. The reversal of 5781273420 is 243721875.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (5781273427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3705165 + ... + 3706724.

It is an arithmetic number, because the mean of its divisors is an integer number (363182610).

Almost surely, 2^5781273420 is an apocalyptic number.

It is an amenable number.

5781273420 is an abundant number, since it is smaller than the sum of its proper divisors (11651491860).

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

5781273420 is a wasteful number, since it uses less digits than its factorization.

5781273420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7411914 (or 7411912 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 39.

The square root of 5781273420 is about 76034.6856375431. The cubic root of 5781273420 is about 1794.7660115591.

The spelling of 5781273420 in words is "five billion, seven hundred eighty-one million, two hundred seventy-three thousand, four hundred twenty".