6451266634 has 8 divisors (see below), whose sum is σ = 9677255940. Its totient is φ = 3225514656.

The previous prime is 6451266623. The next prime is 6451266673. The reversal of 6451266634 is 4366621546.

It can be written as a sum of positive squares in 2 ways, for example, as 6360541009 + 90725625 = 79753^2 + 9525^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46092 + ... + 122584.

Almost surely, 2^6451266634 is an apocalyptic number.

6451266634 is a deficient number, since it is larger than the sum of its proper divisors (3225989306).

6451266634 is a wasteful number, since it uses less digits than its factorization.

6451266634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118664.

The product of its digits is 622080, while the sum is 43.

The square root of 6451266634 is about 80319.7773527791. Note that the first 3 decimals coincide. The cubic root of 6451266634 is about 1861.5798264929.

The spelling of 6451266634 in words is "six billion, four hundred fifty-one million, two hundred sixty-six thousand, six hundred thirty-four".