689201544812031 has 12 divisors (see below), whose sum is σ = 995534393030008. Its totient is φ = 459457980915024.

The previous prime is 689201544812003. The next prime is 689201544812041. The reversal of 689201544812031 is 130218445102986.

689201544812031 is a `hidden beast` number, since 6 + 8 + 9 + 2 + 0 + 154 + 481 + 2 + 0 + 3 + 1 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-689201544812031 is a prime.

It is a super-2 number, since 2×689201544812031² (a number of 30 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 (689201544812041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 809186245 + ... + 810037518.

Almost surely, 2^{689201544812031} is an apocalyptic number.

689201544812031 is a deficient number, since it is larger than the sum of its proper divisors (306332848217977).

689201544812031 is a wasteful number, since it uses less digits than its factorization.

689201544812031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1619271062 (or 1619271059 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 54.

The spelling of 689201544812031 in words is "six hundred eighty-nine trillion, two hundred one billion, five hundred forty-four million, eight hundred twelve thousand, thirty-one".