6494122251 has 12 divisors (see below), whose sum is σ = 9382202128. Its totient is φ = 4328582544.

The previous prime is 6494122231. The next prime is 6494122273. The reversal of 6494122251 is 1522214946.

It is a happy number.

6494122251 is a `hidden beast` number, since 649 + 4 + 1 + 2 + 2 + 2 + 5 + 1 = 666.

It is not a de Polignac number, because 6494122251 - 2⁷ = 6494122123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6494122231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17935 + ... + 115368.

Almost surely, 2^6494122251 is an apocalyptic number.

6494122251 is a deficient number, since it is larger than the sum of its proper divisors (2888079877).

6494122251 is a wasteful number, since it uses less digits than its factorization.

6494122251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138722 (or 138719 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 6494122251 is about 80586.1169867366. The cubic root of 6494122251 is about 1865.6928763601.

The spelling of 6494122251 in words is "six billion, four hundred ninety-four million, one hundred twenty-two thousand, two hundred fifty-one".