5771557920 has 96 divisors (see below), whose sum is σ = 18313319808. Its totient is φ = 1527830528.

The previous prime is 5771557871. The next prime is 5771557921. The reversal of 5771557920 is 297551775.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 5771557920.

It is not an unprimeable number, because it can be changed into a prime (5771557921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21877 + ... + 109643.

It is an arithmetic number, because the mean of its divisors is an integer number (190763748).

Almost surely, 2^5771557920 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 5771557920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9156659904).

5771557920 is an abundant number, since it is smaller than the sum of its proper divisors (12541761888).

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

5771557920 is a wasteful number, since it uses less digits than its factorization.

5771557920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87922 (or 87914 counting only the distinct ones).

The product of its (nonzero) digits is 771750, while the sum is 48.

The square root of 5771557920 is about 75970.7701685326. The cubic root of 5771557920 is about 1793.7600725112.

The spelling of 5771557920 in words is "five billion, seven hundred seventy-one million, five hundred fifty-seven thousand, nine hundred twenty".