6481553458 has 16 divisors (see below), whose sum is σ = 9841029120. Its totient is φ = 3201430176.

The previous prime is 6481553453. The next prime is 6481553461. The reversal of 6481553458 is 8543551846.

It is not an unprimeable number, because it can be changed into a prime (6481553453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4423 + ... + 113941.

It is an arithmetic number, because the mean of its divisors is an integer number (615064320).

Almost surely, 2^6481553458 is an apocalyptic number.

6481553458 is a deficient number, since it is larger than the sum of its proper divisors (3359475662).

6481553458 is a wasteful number, since it uses less digits than its factorization.

6481553458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109881.

The product of its digits is 2304000, while the sum is 49.

The square root of 6481553458 is about 80508.0956053489. The cubic root of 6481553458 is about 1864.4884717674.

The spelling of 6481553458 in words is "six billion, four hundred eighty-one million, five hundred fifty-three thousand, four hundred fifty-eight".