6635043432634 has 4 divisors (see below), whose sum is σ = 9952565148954. Its totient is φ = 3317521716316.

The previous prime is 6635043432613. The next prime is 6635043432701. The reversal of 6635043432634 is 4362343405366.

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., 5162424777409 + 1472618655225 = 2272097^2 + 1213515^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1658760858157 + ... + 1658760858160.

Almost surely, 2^{6635043432634} is an apocalyptic number.

6635043432634 is a deficient number, since it is larger than the sum of its proper divisors (3317521716320).

6635043432634 is a wasteful number, since it uses less digits than its factorization.

6635043432634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3317521716319.

The product of its (nonzero) digits is 11197440, while the sum is 49.

The spelling of 6635043432634 in words is "six trillion, six hundred thirty-five billion, forty-three million, four hundred thirty-two thousand, six hundred thirty-four".