8621481543 has 32 divisors (see below), whose sum is σ = 12267548160. Its totient is φ = 5376792960.

The previous prime is 8621481521. The next prime is 8621481559. The reversal of 8621481543 is 3451841268.

It is a happy number.

It is not a de Polignac number, because 8621481543 - 2⁵ = 8621481511 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8621481495 and 8621481504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8621481563) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 343446 + ... + 367692.

It is an arithmetic number, because the mean of its divisors is an integer number (383360880).

Almost surely, 2^8621481543 is an apocalyptic number.

8621481543 is a deficient number, since it is larger than the sum of its proper divisors (3646066617).

8621481543 is a wasteful number, since it uses less digits than its factorization.

8621481543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24407.

The product of its digits is 184320, while the sum is 42.

The square root of 8621481543 is about 92851.9334370588. The cubic root of 8621481543 is about 2050.5040634765.

The spelling of 8621481543 in words is "eight billion, six hundred twenty-one million, four hundred eighty-one thousand, five hundred forty-three".