8339972481 has 24 divisors (see below), whose sum is σ = 12415877760. Its totient is φ = 5391730656.

The previous prime is 8339972447. The next prime is 8339972491. The reversal of 8339972481 is 1842799338.

8339972481 is a `hidden beast` number, since 8 + 3 + 3 + 99 + 72 + 481 = 666.

It is not a de Polignac number, because 8339972481 - 2¹⁹ = 8339448193 is a prime.

It is a super-2 number, since 2×8339972481² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8339972491) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44335 + ... + 136548.

It is an arithmetic number, because the mean of its divisors is an integer number (517328240).

Almost surely, 2^8339972481 is an apocalyptic number.

It is an amenable number.

8339972481 is a deficient number, since it is larger than the sum of its proper divisors (4075905279).

8339972481 is a wasteful number, since it uses less digits than its factorization.

8339972481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181045 (or 181042 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The square root of 8339972481 is about 91323.4497870071. The cubic root of 8339972481 is about 2027.9389307673.

The spelling of 8339972481 in words is "eight billion, three hundred thirty-nine million, nine hundred seventy-two thousand, four hundred eighty-one".