7427347930091 has 2 divisors, whose sum is σ = 7427347930092. Its totient is φ = 7427347930090.

The previous prime is 7427347930063. The next prime is 7427347930111. The reversal of 7427347930091 is 1900397437247.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7427347930091 - 2¹⁸ = 7427347667947 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (7427347930291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3713673965045 + 3713673965046.

It is an arithmetic number, because the mean of its divisors is an integer number (3713673965046).

Almost surely, 2^{7427347930091} is an apocalyptic number.

7427347930091 is a deficient number, since it is larger than the sum of its proper divisors (1).

7427347930091 is an equidigital number, since it uses as much as digits as its factorization.

7427347930091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8001504, while the sum is 56.

The spelling of 7427347930091 in words is "seven trillion, four hundred twenty-seven billion, three hundred forty-seven million, nine hundred thirty thousand, ninety-one".