789645967631 has 4 divisors (see below), whose sum is σ = 790291631952. Its totient is φ = 789000303312.

The previous prime is 789645967543. The next prime is 789645967681. The reversal of 789645967631 is 136769546987.

789645967631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 789645967631 - 2¹⁰ = 789645966607 is a prime.

It is a super-2 number, since 2×789645967631² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (789645967681) 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, 322830326 + ... + 322832771.

It is an arithmetic number, because the mean of its divisors is an integer number (197572907988).

Almost surely, 2^789645967631 is an apocalyptic number.

789645967631 is a deficient number, since it is larger than the sum of its proper divisors (645664321).

789645967631 is a wasteful number, since it uses less digits than its factorization.

789645967631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645664320.

The product of its digits is 411505920, while the sum is 71.

The spelling of 789645967631 in words is "seven hundred eighty-nine billion, six hundred forty-five million, nine hundred sixty-seven thousand, six hundred thirty-one".