5100611050991 has 2 divisors, whose sum is σ = 5100611050992. Its totient is φ = 5100611050990.

The previous prime is 5100611050967. The next prime is 5100611051113. The reversal of 5100611050991 is 1990501160015.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5100611050991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5100611050901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2550305525495 + 2550305525496.

It is an arithmetic number, because the mean of its divisors is an integer number (2550305525496).

Almost surely, 2^{5100611050991} is an apocalyptic number.

5100611050991 is a deficient number, since it is larger than the sum of its proper divisors (1).

5100611050991 is an equidigital number, since it uses as much as digits as its factorization.

5100611050991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12150, while the sum is 38.

The spelling of 5100611050991 in words is "five trillion, one hundred billion, six hundred eleven million, fifty thousand, nine hundred ninety-one".