8013504785 has 32 divisors (see below), whose sum is σ = 11488901760. Its totient is φ = 5288486400.

The previous prime is 8013504781. The next prime is 8013504823. The reversal of 8013504785 is 5874053108.

It is not a de Polignac number, because 8013504785 - 2² = 8013504781 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8013504781) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52796 + ... + 137165.

It is an arithmetic number, because the mean of its divisors is an integer number (359028180).

Almost surely, 2^8013504785 is an apocalyptic number.

It is an amenable number.

8013504785 is a deficient number, since it is larger than the sum of its proper divisors (3475396975).

8013504785 is a wasteful number, since it uses less digits than its factorization.

8013504785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190049.

The product of its (nonzero) digits is 134400, while the sum is 41.

The square root of 8013504785 is about 89518.1813097205. The cubic root of 8013504785 is about 2001.1247660821.

The spelling of 8013504785 in words is "eight billion, thirteen million, five hundred four thousand, seven hundred eighty-five".