8636368542 has 16 divisors (see below), whose sum is σ = 17739568272. Its totient is φ = 2800984320.

The previous prime is 8636368513. The next prime is 8636368549. The reversal of 8636368542 is 2458636368.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8636368549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19451059 + ... + 19451502.

It is an arithmetic number, because the mean of its divisors is an integer number (1108723017).

Almost surely, 2^8636368542 is an apocalyptic number.

8636368542 is an abundant number, since it is smaller than the sum of its proper divisors (9103199730).

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

8636368542 is a wasteful number, since it uses less digits than its factorization.

8636368542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38902603.

The product of its digits is 4976640, while the sum is 51.

The square root of 8636368542 is about 92932.0641221317. The cubic root of 8636368542 is about 2051.6836093440.

The spelling of 8636368542 in words is "eight billion, six hundred thirty-six million, three hundred sixty-eight thousand, five hundred forty-two".