8231638067377 has 4 divisors (see below), whose sum is σ = 8231644612096. Its totient is φ = 8231631522660.

The previous prime is 8231638067327. The next prime is 8231638067407. The reversal of 8231638067377 is 7737608361328.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 8231638067377 - 2⁷ = 8231638067249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8231638067327) 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, 724449 + ... + 4121662.

It is an arithmetic number, because the mean of its divisors is an integer number (2057911153024).

Almost surely, 2^{8231638067377} is an apocalyptic number.

It is an amenable number.

8231638067377 is a deficient number, since it is larger than the sum of its proper divisors (6544719).

8231638067377 is a wasteful number, since it uses less digits than its factorization.

8231638067377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6544718.

The product of its (nonzero) digits is 42674688, while the sum is 61.

The spelling of 8231638067377 in words is "eight trillion, two hundred thirty-one billion, six hundred thirty-eight million, sixty-seven thousand, three hundred seventy-seven".