8315785898 has 48 divisors (see below), whose sum is σ = 15531047424. Its totient is φ = 3267358560.

The previous prime is 8315785889. The next prime is 8315785901. The reversal of 8315785898 is 8985875138.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (62).

It is a self number, because there is not a number n which added to its sum of digits gives 8315785898.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 130136 + ... + 183212.

It is an arithmetic number, because the mean of its divisors is an integer number (323563488).

Almost surely, 2^8315785898 is an apocalyptic number.

8315785898 is a deficient number, since it is larger than the sum of its proper divisors (7215261526).

8315785898 is a wasteful number, since it uses less digits than its factorization.

8315785898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53155 (or 53136 counting only the distinct ones).

The product of its digits is 19353600, while the sum is 62.

The square root of 8315785898 is about 91190.9310074198. The cubic root of 8315785898 is about 2025.9766379192.

The spelling of 8315785898 in words is "eight billion, three hundred fifteen million, seven hundred eighty-five thousand, eight hundred ninety-eight".