36644613350399 has 4 divisors (see below), whose sum is σ = 38237857409136. Its totient is φ = 35051369291664.

The previous prime is 36644613350377. The next prime is 36644613350441. The reversal of 36644613350399 is 99305331644663.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 36644613350399 - 2⁸ = 36644613350143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36644613350369) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 796622029334 + ... + 796622029379.

It is an arithmetic number, because the mean of its divisors is an integer number (9559464352284).

Almost surely, 2^{36644613350399} is an apocalyptic number.

36644613350399 is a deficient number, since it is larger than the sum of its proper divisors (1593244058737).

36644613350399 is a wasteful number, since it uses less digits than its factorization.

36644613350399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1593244058736.

The product of its (nonzero) digits is 113374080, while the sum is 62.

The spelling of 36644613350399 in words is "thirty-six trillion, six hundred forty-four billion, six hundred thirteen million, three hundred fifty thousand, three hundred ninety-nine".