8121585048 has 32 divisors (see below), whose sum is σ = 20493725760. Its totient is φ = 2681893280.

The previous prime is 8121585047. The next prime is 8121585061. The reversal of 8121585048 is 8405851218.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8121585041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1578738 + ... + 1583873.

It is an arithmetic number, because the mean of its divisors is an integer number (640428930).

Almost surely, 2^8121585048 is an apocalyptic number.

It is an amenable number.

8121585048 is an abundant number, since it is smaller than the sum of its proper divisors (12372140712).

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

8121585048 is a wasteful number, since it uses less digits than its factorization.

8121585048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3162727 (or 3162723 counting only the distinct ones).

The product of its (nonzero) digits is 102400, while the sum is 42.

The square root of 8121585048 is about 90119.8371503189. The cubic root of 8121585048 is about 2010.0811867903.

The spelling of 8121585048 in words is "eight billion, one hundred twenty-one million, five hundred eighty-five thousand, forty-eight".