810338845389 has 8 divisors (see below), whose sum is σ = 1081195400352. Its totient is φ = 539854093680.

The previous prime is 810338845367. The next prime is 810338845427. The reversal of 810338845389 is 983548833018.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 810338845389 - 2²¹ = 810336748237 is a prime.

It is a super-2 number, since 2×810338845389² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (810338845289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92945727 + ... + 92954444.

It is an arithmetic number, because the mean of its divisors is an integer number (135149425044).

Almost surely, 2^810338845389 is an apocalyptic number.

It is an amenable number.

810338845389 is a deficient number, since it is larger than the sum of its proper divisors (270856554963).

810338845389 is a wasteful number, since it uses less digits than its factorization.

810338845389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185901627.

The product of its (nonzero) digits is 19906560, while the sum is 60.

The spelling of 810338845389 in words is "eight hundred ten billion, three hundred thirty-eight million, eight hundred forty-five thousand, three hundred eighty-nine".