838105580408 has 16 divisors (see below), whose sum is σ = 1571458979880. Its totient is φ = 419049852448.

The previous prime is 838105580407. The next prime is 838105580413. The reversal of 838105580408 is 804085501838.

It is a super-2 number, since 2×838105580408² (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 (838105580407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1279766 + ... + 1820442.

Almost surely, 2^838105580408 is an apocalyptic number.

It is an amenable number.

838105580408 is a deficient number, since it is larger than the sum of its proper divisors (733353399472).

838105580408 is a wasteful number, since it uses less digits than its factorization.

838105580408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734446 (or 734442 counting only the distinct ones).

The product of its (nonzero) digits is 1228800, while the sum is 50.

The spelling of 838105580408 in words is "eight hundred thirty-eight billion, one hundred five million, five hundred eighty thousand, four hundred eight".