51411354042091 has 2 divisors, whose sum is σ = 51411354042092. Its totient is φ = 51411354042090.

The previous prime is 51411354042089. The next prime is 51411354042107. The reversal of 51411354042091 is 19024045311415.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51411354042091 - 2¹ = 51411354042089 is a prime.

Together with 51411354042089, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (51411354042011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25705677021045 + 25705677021046.

It is an arithmetic number, because the mean of its divisors is an integer number (25705677021046).

Almost surely, 2^{51411354042091} is an apocalyptic number.

51411354042091 is a deficient number, since it is larger than the sum of its proper divisors (1).

51411354042091 is an equidigital number, since it uses as much as digits as its factorization.

51411354042091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 86400, while the sum is 40.

The spelling of 51411354042091 in words is "fifty-one trillion, four hundred eleven billion, three hundred fifty-four million, forty-two thousand, ninety-one".