793871638641 has 16 divisors (see below), whose sum is σ = 1176475291200. Its totient is φ = 529081637184.

The previous prime is 793871638631. The next prime is 793871638643. The reversal of 793871638641 is 146836178397.

It is not a de Polignac number, because 793871638641 - 2⁷ = 793871638513 is a prime.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (793871638643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4526856 + ... + 4698953.

It is an arithmetic number, because the mean of its divisors is an integer number (73529705700).

Almost surely, 2^793871638641 is an apocalyptic number.

It is an amenable number.

793871638641 is a deficient number, since it is larger than the sum of its proper divisors (382603652559).

793871638641 is a wasteful number, since it uses less digits than its factorization.

793871638641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9229005 (or 9228999 counting only the distinct ones).

The product of its digits is 36578304, while the sum is 63.

The spelling of 793871638641 in words is "seven hundred ninety-three billion, eight hundred seventy-one million, six hundred thirty-eight thousand, six hundred forty-one".