689203120110021 has 48 divisors (see below), whose sum is σ = 1088640253314432. Its totient is φ = 416690135654400.

The previous prime is 689203120109981. The next prime is 689203120110079. The reversal of 689203120110021 is 120011021302986.

It is not a de Polignac number, because 689203120110021 - 2²³ = 689203111721413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689203220110021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 406862821 + ... + 408553253.

It is an arithmetic number, because the mean of its divisors is an integer number (22680005277384).

Almost surely, 2^{689203120110021} is an apocalyptic number.

It is an amenable number.

689203120110021 is a deficient number, since it is larger than the sum of its proper divisors (399437133204411).

689203120110021 is a wasteful number, since it uses less digits than its factorization.

689203120110021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1700394 (or 1700391 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The spelling of 689203120110021 in words is "six hundred eighty-nine trillion, two hundred three billion, one hundred twenty million, one hundred ten thousand, twenty-one".