8415913478 has 32 divisors (see below), whose sum is σ = 15485235264. Its totient is φ = 3348145152.

The previous prime is 8415913423. The next prime is 8415913531. The reversal of 8415913478 is 8743195148.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 224825 + ... + 259572.

It is an arithmetic number, because the mean of its divisors is an integer number (483913602).

Almost surely, 2^8415913478 is an apocalyptic number.

8415913478 is a deficient number, since it is larger than the sum of its proper divisors (7069321786).

8415913478 is a wasteful number, since it uses less digits than its factorization.

8415913478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484496.

The product of its digits is 967680, while the sum is 50.

The square root of 8415913478 is about 91738.2879609163. The cubic root of 8415913478 is about 2034.0755864767.

The spelling of 8415913478 in words is "eight billion, four hundred fifteen million, nine hundred thirteen thousand, four hundred seventy-eight".