8049475818 has 128 divisors (see below), whose sum is σ = 19160064000. Its totient is φ = 2497728960.

The previous prime is 8049475813. The next prime is 8049475823. The reversal of 8049475818 is 8185749408.

8049475818 is a `hidden beast` number, since 8 + 0 + 494 + 75 + 81 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (8049475813) and next prime (8049475823).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (8049475813) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 18676063 + ... + 18676493.

It is an arithmetic number, because the mean of its divisors is an integer number (149688000).

Almost surely, 2^8049475818 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8049475818, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9580032000).

8049475818 is an abundant number, since it is smaller than the sum of its proper divisors (11110588182).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8049475818 is a wasteful number, since it uses less digits than its factorization.

8049475818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737 (or 731 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 54.

The square root of 8049475818 is about 89718.8710249967. The cubic root of 8049475818 is about 2004.1145144143.

The spelling of 8049475818 in words is "eight billion, forty-nine million, four hundred seventy-five thousand, eight hundred eighteen".