6433630463 has 4 divisors (see below), whose sum is σ = 6928525128. Its totient is φ = 5938735800.

The previous prime is 6433630369. The next prime is 6433630471. The reversal of 6433630463 is 3640363346.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3640363346 = 2 ⋅1820181673.

It is a cyclic number.

It is not a de Polignac number, because 6433630463 - 2²⁸ = 6165195007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6433630163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 247447313 + ... + 247447338.

It is an arithmetic number, because the mean of its divisors is an integer number (1732131282).

Almost surely, 2^6433630463 is an apocalyptic number.

6433630463 is a deficient number, since it is larger than the sum of its proper divisors (494894665).

6433630463 is a wasteful number, since it uses less digits than its factorization.

6433630463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494894664.

The product of its (nonzero) digits is 279936, while the sum is 38.

The square root of 6433630463 is about 80209.9149918512. The cubic root of 6433630463 is about 1859.8819117036.

The spelling of 6433630463 in words is "six billion, four hundred thirty-three million, six hundred thirty thousand, four hundred sixty-three".