3640558344193 has 4 divisors (see below), whose sum is σ = 3640645842480. Its totient is φ = 3640470845908.

The previous prime is 3640558344167. The next prime is 3640558344211. The reversal of 3640558344193 is 3914438550463.

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 a de Polignac number, because none of the positive numbers 2^k-3640558344193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3640558344133) 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, 43686703 + ... + 43769956.

It is an arithmetic number, because the mean of its divisors is an integer number (910161460620).

Almost surely, 2^{3640558344193} is an apocalyptic number.

It is an amenable number.

3640558344193 is a deficient number, since it is larger than the sum of its proper divisors (87498287).

3640558344193 is an equidigital number, since it uses as much as digits as its factorization.

3640558344193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87498286.

The product of its (nonzero) digits is 18662400, while the sum is 55.

The spelling of 3640558344193 in words is "three trillion, six hundred forty billion, five hundred fifty-eight million, three hundred forty-four thousand, one hundred ninety-three".