36643765642 has 16 divisors (see below), whose sum is σ = 63489733632. Its totient is φ = 15676477120.

The previous prime is 36643765619. The next prime is 36643765649. The reversal of 36643765642 is 24656734663.

It is a self number, because there is not a number n which added to its sum of digits gives 36643765642.

It is not an unprimeable number, because it can be changed into a prime (36643765649) 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, 48988618 + ... + 48989365.

It is an arithmetic number, because the mean of its divisors is an integer number (3968108352).

Almost surely, 2^36643765642 is an apocalyptic number.

36643765642 is a deficient number, since it is larger than the sum of its proper divisors (26845967990).

36643765642 is a wasteful number, since it uses less digits than its factorization.

36643765642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97978013.

The product of its digits is 13063680, while the sum is 52.

The spelling of 36643765642 in words is "thirty-six billion, six hundred forty-three million, seven hundred sixty-five thousand, six hundred forty-two".