2338773506491 has 4 divisors (see below), whose sum is σ = 2414217813184. Its totient is φ = 2263329199800.

The previous prime is 2338773506437. The next prime is 2338773506543. The reversal of 2338773506491 is 1946053778332.

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 2338773506491 - 2³⁵ = 2304413768123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2338773506591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37722153300 + ... + 37722153361.

It is an arithmetic number, because the mean of its divisors is an integer number (603554453296).

It is a 1-persistent number, because it is pandigital, but 2⋅2338773506491 = 4677547012982 is not.

Almost surely, 2^{2338773506491} is an apocalyptic number.

2338773506491 is a deficient number, since it is larger than the sum of its proper divisors (75444306693).

2338773506491 is an equidigital number, since it uses as much as digits as its factorization.

2338773506491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75444306692.

The product of its (nonzero) digits is 22861440, while the sum is 58.

The spelling of 2338773506491 in words is "two trillion, three hundred thirty-eight billion, seven hundred seventy-three million, five hundred six thousand, four hundred ninety-one".