6481290626 has 8 divisors (see below), whose sum is σ = 9881312124. Its totient is φ = 3187519920.

The previous prime is 6481290623. The next prime is 6481290671. The reversal of 6481290626 is 6260921846.

It can be written as a sum of positive squares in 2 ways, for example, as 6450499225 + 30791401 = 80315^2 + 5549^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (6481290623) 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 3 ways as a sum of consecutive naturals, for example, 26562545 + ... + 26562788.

Almost surely, 2^6481290626 is an apocalyptic number.

6481290626 is a deficient number, since it is larger than the sum of its proper divisors (3400021498).

6481290626 is a wasteful number, since it uses less digits than its factorization.

6481290626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53125396.

The product of its (nonzero) digits is 248832, while the sum is 44.

The square root of 6481290626 is about 80506.4632560641. The cubic root of 6481290626 is about 1864.4632692775.

The spelling of 6481290626 in words is "six billion, four hundred eighty-one million, two hundred ninety thousand, six hundred twenty-six".