491910070363 has 2 divisors, whose sum is σ = 491910070364. Its totient is φ = 491910070362.

The previous prime is 491910070343. The next prime is 491910070369. The reversal of 491910070363 is 363070019194.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 491910070363 - 2⁵ = 491910070331 is a prime.

It is a super-2 number, since 2×491910070363² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (491910070369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245955035181 + 245955035182.

It is an arithmetic number, because the mean of its divisors is an integer number (245955035182).

Almost surely, 2^491910070363 is an apocalyptic number.

491910070363 is a deficient number, since it is larger than the sum of its proper divisors (1).

491910070363 is an equidigital number, since it uses as much as digits as its factorization.

491910070363 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 122472, while the sum is 43.

The spelling of 491910070363 in words is "four hundred ninety-one billion, nine hundred ten million, seventy thousand, three hundred sixty-three".