8541263380 has 72 divisors (see below), whose sum is σ = 19479398400. Its totient is φ = 3144465792.

The previous prime is 8541263359. The next prime is 8541263383. The reversal of 8541263380 is 833621458.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8541263383) 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 23 ways as a sum of consecutive naturals, for example, 1209901 + ... + 1216939.

It is an arithmetic number, because the mean of its divisors is an integer number (270547200).

Almost surely, 2^8541263380 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 8541263380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9739699200).

8541263380 is an abundant number, since it is smaller than the sum of its proper divisors (10938135020).

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

8541263380 is a wasteful number, since it uses less digits than its factorization.

8541263380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7433 (or 7418 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 8541263380 is about 92418.9557396100. The cubic root of 8541263380 is about 2044.1246309781.

The spelling of 8541263380 in words is "eight billion, five hundred forty-one million, two hundred sixty-three thousand, three hundred eighty".