5805272778 has 16 divisors (see below), whose sum is σ = 12293519040. Its totient is φ = 1821262016.

The previous prime is 5805272723. The next prime is 5805272791. The reversal of 5805272778 is 8772725085.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 5805272778.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28457118 + ... + 28457321.

It is an arithmetic number, because the mean of its divisors is an integer number (768344940).

Almost surely, 2^5805272778 is an apocalyptic number.

5805272778 is an abundant number, since it is smaller than the sum of its proper divisors (6488246262).

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

5805272778 is a wasteful number, since it uses less digits than its factorization.

5805272778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56914461.

The product of its (nonzero) digits is 2195200, while the sum is 51.

The square root of 5805272778 is about 76192.3406780498. The cubic root of 5805272778 is about 1797.2460745594.

The spelling of 5805272778 in words is "five billion, eight hundred five million, two hundred seventy-two thousand, seven hundred seventy-eight".