9374881740491 has 2 divisors, whose sum is σ = 9374881740492. Its totient is φ = 9374881740490.

The previous prime is 9374881740421. The next prime is 9374881740503. The reversal of 9374881740491 is 1940471884739.

It is a strong prime.

It is an emirp because it is prime and its reverse (1940471884739) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9374881740491 is a prime.

It is a super-2 number, since 2×9374881740491² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9374881740421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4687440870245 + 4687440870246.

It is an arithmetic number, because the mean of its divisors is an integer number (4687440870246).

Almost surely, 2^{9374881740491} is an apocalyptic number.

9374881740491 is a deficient number, since it is larger than the sum of its proper divisors (1).

9374881740491 is an equidigital number, since it uses as much as digits as its factorization.

9374881740491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48771072, while the sum is 65.

The spelling of 9374881740491 in words is "nine trillion, three hundred seventy-four billion, eight hundred eighty-one million, seven hundred forty thousand, four hundred ninety-one".