689023538963 has 4 divisors (see below), whose sum is σ = 711250104768. Its totient is φ = 666796973160.

The previous prime is 689023538947. The next prime is 689023538993. The reversal of 689023538963 is 369835320986.

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 689023538963 - 2⁴ = 689023538947 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 689023538896 and 689023538905.

It is not an unprimeable number, because it can be changed into a prime (689023538993) 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, 11113282856 + ... + 11113282917.

It is an arithmetic number, because the mean of its divisors is an integer number (177812526192).

Almost surely, 2^689023538963 is an apocalyptic number.

689023538963 is a deficient number, since it is larger than the sum of its proper divisors (22226565805).

689023538963 is a wasteful number, since it uses less digits than its factorization.

689023538963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22226565804.

The product of its (nonzero) digits is 50388480, while the sum is 62.

The spelling of 689023538963 in words is "six hundred eighty-nine billion, twenty-three million, five hundred thirty-eight thousand, nine hundred sixty-three".