6432278746 has 16 divisors (see below), whose sum is σ = 10275033384. Its totient is φ = 3009455104.

The previous prime is 6432278737. The next prime is 6432278747. The reversal of 6432278746 is 6478722346.

It can be written as a sum of positive squares in 4 ways, for example, as 6409763721 + 22515025 = 80061^2 + 4745^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 6432278746.

It is not an unprimeable number, because it can be changed into a prime (6432278747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 540895 + ... + 552658.

Almost surely, 2^6432278746 is an apocalyptic number.

6432278746 is a deficient number, since it is larger than the sum of its proper divisors (3842754638).

6432278746 is a wasteful number, since it uses less digits than its factorization.

6432278746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1093745.

The product of its digits is 2709504, while the sum is 49.

The square root of 6432278746 is about 80201.4884275847. The cubic root of 6432278746 is about 1859.7516477673.

The spelling of 6432278746 in words is "six billion, four hundred thirty-two million, two hundred seventy-eight thousand, seven hundred forty-six".