8057205642 has 16 divisors (see below), whose sum is σ = 16118075520. Its totient is φ = 2685124512.

The previous prime is 8057205631. The next prime is 8057205643. The reversal of 8057205642 is 2465027508.

It is a self number, because there is not a number n which added to its sum of digits gives 8057205642.

It is not an unprimeable number, because it can be changed into a prime (8057205643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123667 + ... + 177222.

It is an arithmetic number, because the mean of its divisors is an integer number (1007379720).

Almost surely, 2^8057205642 is an apocalyptic number.

8057205642 is an abundant number, since it is smaller than the sum of its proper divisors (8060869878).

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

8057205642 is a wasteful number, since it uses less digits than its factorization.

8057205642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305357.

The product of its (nonzero) digits is 134400, while the sum is 39.

The square root of 8057205642 is about 89761.9387156940. The cubic root of 8057205642 is about 2004.7558189625.

The spelling of 8057205642 in words is "eight billion, fifty-seven million, two hundred five thousand, six hundred forty-two".