2193341516491 has 4 divisors (see below), whose sum is σ = 2194087807800. Its totient is φ = 2192595225184.

The previous prime is 2193341516489. The next prime is 2193341516497. The reversal of 2193341516491 is 1946151433912.

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 2193341516491 - 2¹ = 2193341516489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2193341516497) 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, 373141246 + ... + 373147123.

It is an arithmetic number, because the mean of its divisors is an integer number (548521951950).

Almost surely, 2^{2193341516491} is an apocalyptic number.

2193341516491 is a deficient number, since it is larger than the sum of its proper divisors (746291309).

2193341516491 is an equidigital number, since it uses as much as digits as its factorization.

2193341516491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746291308.

The product of its digits is 699840, while the sum is 49.

The spelling of 2193341516491 in words is "two trillion, one hundred ninety-three billion, three hundred forty-one million, five hundred sixteen thousand, four hundred ninety-one".