789663366987 has 16 divisors (see below), whose sum is σ = 1198540447488. Its totient is φ = 457775864480.

The previous prime is 789663366967. The next prime is 789663367013.

789663366987 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 789663366987 - 2²² = 789659172683 is a prime.

It is a super-2 number, since 2×789663366987² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (789663366967) 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, 520199088 + ... + 520200605.

It is an arithmetic number, because the mean of its divisors is an integer number (74908777968).

Almost surely, 2^789663366987 is an apocalyptic number.

789663366987 is a deficient number, since it is larger than the sum of its proper divisors (408877080501).

789663366987 is a wasteful number, since it uses less digits than its factorization.

789663366987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1040399730.

The product of its digits is 2962842624, while the sum is 78.

The spelling of 789663366987 in words is "seven hundred eighty-nine billion, six hundred sixty-three million, three hundred sixty-six thousand, nine hundred eighty-seven".