364809985849 has 4 divisors (see below), whose sum is σ = 384010511440. Its totient is φ = 345609460260.

The previous prime is 364809985823. The next prime is 364809985889. The reversal of 364809985849 is 948589908463.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 364809985849 - 2¹⁹ = 364809461561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (364809985889) 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, 9600262767 + ... + 9600262804.

It is an arithmetic number, because the mean of its divisors is an integer number (96002627860).

Almost surely, 2^364809985849 is an apocalyptic number.

It is an amenable number.

364809985849 is a deficient number, since it is larger than the sum of its proper divisors (19200525591).

364809985849 is a wasteful number, since it uses less digits than its factorization.

364809985849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19200525590.

The product of its (nonzero) digits is 537477120, while the sum is 73.

The spelling of 364809985849 in words is "three hundred sixty-four billion, eight hundred nine million, nine hundred eighty-five thousand, eight hundred forty-nine".