51108910423 has 2 divisors, whose sum is σ = 51108910424. Its totient is φ = 51108910422.

The previous prime is 51108910387. The next prime is 51108910477. The reversal of 51108910423 is 32401980115.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51108910423 is a prime.

It is a super-2 number, since 2×51108910423² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51108910123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25554455211 + 25554455212.

It is an arithmetic number, because the mean of its divisors is an integer number (25554455212).

Almost surely, 2^51108910423 is an apocalyptic number.

51108910423 is a deficient number, since it is larger than the sum of its proper divisors (1).

51108910423 is an equidigital number, since it uses as much as digits as its factorization.

51108910423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 34.

The spelling of 51108910423 in words is "fifty-one billion, one hundred eight million, nine hundred ten thousand, four hundred twenty-three".