8415838028149 has 4 divisors (see below), whose sum is σ = 8558479350720. Its totient is φ = 8273196705580.

The previous prime is 8415838028131. The next prime is 8415838028183. The reversal of 8415838028149 is 9418208385148.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8415838028149 - 2⁷ = 8415838028021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8415838028249) 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 3 ways as a sum of consecutive naturals, for example, 71320661197 + ... + 71320661314.

It is an arithmetic number, because the mean of its divisors is an integer number (2139619837680).

Almost surely, 2^{8415838028149} is an apocalyptic number.

It is an amenable number.

8415838028149 is a deficient number, since it is larger than the sum of its proper divisors (142641322571).

8415838028149 is a wasteful number, since it uses less digits than its factorization.

8415838028149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142641322570.

The product of its (nonzero) digits is 17694720, while the sum is 61.

The spelling of 8415838028149 in words is "eight trillion, four hundred fifteen billion, eight hundred thirty-eight million, twenty-eight thousand, one hundred forty-nine".