8631003394943 has 4 divisors (see below), whose sum is σ = 8909422859328. Its totient is φ = 8352583930560.

The previous prime is 8631003394907. The next prime is 8631003394961. The reversal of 8631003394943 is 3494933001368.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 8631003394943 - 2⁶ = 8631003394879 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 (8631003294943) 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, 139209732146 + ... + 139209732207.

It is an arithmetic number, because the mean of its divisors is an integer number (2227355714832).

Almost surely, 2^{8631003394943} is an apocalyptic number.

8631003394943 is a deficient number, since it is larger than the sum of its proper divisors (278419464385).

8631003394943 is a wasteful number, since it uses less digits than its factorization.

8631003394943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278419464384.

The product of its (nonzero) digits is 5038848, while the sum is 53.

The spelling of 8631003394943 in words is "eight trillion, six hundred thirty-one billion, three million, three hundred ninety-four thousand, nine hundred forty-three".