6451879426 has 4 divisors (see below), whose sum is σ = 9677819142. Its totient is φ = 3225939712.

The previous prime is 6451879409. The next prime is 6451879453. The reversal of 6451879426 is 6249781546.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 4985066025 + 1466813401 = 70605^2 + 38299^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1612969855 + ... + 1612969858.

Almost surely, 2^6451879426 is an apocalyptic number.

6451879426 is a deficient number, since it is larger than the sum of its proper divisors (3225939716).

6451879426 is a wasteful number, since it uses less digits than its factorization.

6451879426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3225939715.

The product of its digits is 2903040, while the sum is 52.

The square root of 6451879426 is about 80323.5919640052. The cubic root of 6451879426 is about 1861.6387671202.

The spelling of 6451879426 in words is "six billion, four hundred fifty-one million, eight hundred seventy-nine thousand, four hundred twenty-six".