291949874483 has 2 divisors, whose sum is σ = 291949874484. Its totient is φ = 291949874482.

The previous prime is 291949874431. The next prime is 291949874501. The reversal of 291949874483 is 384478949192.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-291949874483 is a prime.

It is a super-4 number, since 4×291949874483⁴ (a number of 47 digits) contains 4444 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (291949874413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 145974937241 + 145974937242.

It is an arithmetic number, because the mean of its divisors is an integer number (145974937242).

Almost surely, 2^291949874483 is an apocalyptic number.

291949874483 is a deficient number, since it is larger than the sum of its proper divisors (1).

291949874483 is an equidigital number, since it uses as much as digits as its factorization.

291949874483 is an evil number, because the sum of its binary digits is even.

The product of its digits is 125411328, while the sum is 68.

The spelling of 291949874483 in words is "two hundred ninety-one billion, nine hundred forty-nine million, eight hundred seventy-four thousand, four hundred eighty-three".