2291518449793 has 8 divisors (see below), whose sum is σ = 2426339321640. Its totient is φ = 2156700430080.

The previous prime is 2291518449767. The next prime is 2291518449799. The reversal of 2291518449793 is 3979448151922.

It can be written as a sum of positive squares in 4 ways, for example, as 666038796544 + 1625479653249 = 816112^2 + 1274943^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2291518449793 - 2⁵ = 2291518449761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2291518449799) 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, 1068283 + ... + 2392543.

It is an arithmetic number, because the mean of its divisors is an integer number (303292415205).

Almost surely, 2^{2291518449793} is an apocalyptic number.

It is an amenable number.

2291518449793 is a deficient number, since it is larger than the sum of its proper divisors (134820871847).

2291518449793 is a wasteful number, since it uses less digits than its factorization.

2291518449793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1426067.

The product of its digits is 39191040, while the sum is 64.

It can be divided in two parts, 2291518 and 449793, that added together give a triangular number (2741311 = T₂₃₄₁).

The spelling of 2291518449793 in words is "two trillion, two hundred ninety-one billion, five hundred eighteen million, four hundred forty-nine thousand, seven hundred ninety-three".