6495081481 has 32 divisors (see below), whose sum is σ = 7928045568. Its totient is φ = 5200303680.

The previous prime is 6495081469. The next prime is 6495081533. The reversal of 6495081481 is 1841805946.

It is not a de Polignac number, because 6495081481 - 2¹³ = 6495073289 is a prime.

It is a super-2 number, since 2×6495081481² = 84372166889658306722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6495081431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5546026 + ... + 5547196.

It is an arithmetic number, because the mean of its divisors is an integer number (247751424).

Almost surely, 2^6495081481 is an apocalyptic number.

It is an amenable number.

6495081481 is a deficient number, since it is larger than the sum of its proper divisors (1432964087).

6495081481 is a wasteful number, since it uses less digits than its factorization.

6495081481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1981.

The product of its (nonzero) digits is 276480, while the sum is 46.

The square root of 6495081481 is about 80592.0683504276. The cubic root of 6495081481 is about 1865.7847307274.

The spelling of 6495081481 in words is "six billion, four hundred ninety-five million, eighty-one thousand, four hundred eighty-one".