5091913645531 has 2 divisors, whose sum is σ = 5091913645532. Its totient is φ = 5091913645530.

The previous prime is 5091913645477. The next prime is 5091913645583. The reversal of 5091913645531 is 1355463191905.

It is a happy number.

It is an a-pointer prime, because the next prime (5091913645583) can be obtained adding 5091913645531 to its sum of digits (52).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5091913645531 - 2¹³ = 5091913637339 is a prime.

It is a super-2 number, since 2×5091913645531² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5091913645631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2545956822765 + 2545956822766.

It is an arithmetic number, because the mean of its divisors is an integer number (2545956822766).

Almost surely, 2^{5091913645531} is an apocalyptic number.

5091913645531 is a deficient number, since it is larger than the sum of its proper divisors (1).

5091913645531 is an equidigital number, since it uses as much as digits as its factorization.

5091913645531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2187000, while the sum is 52.

The spelling of 5091913645531 in words is "five trillion, ninety-one billion, nine hundred thirteen million, six hundred forty-five thousand, five hundred thirty-one".