51761158447 has 2 divisors, whose sum is σ = 51761158448. Its totient is φ = 51761158446.

The previous prime is 51761158429. The next prime is 51761158469. The reversal of 51761158447 is 74485116715.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51761158447 - 2³⁵ = 17401420079 is a prime.

It is a super-3 number, since 3×51761158447³ (a number of 33 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51761158447.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51761158487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25880579223 + 25880579224.

It is an arithmetic number, because the mean of its divisors is an integer number (25880579224).

Almost surely, 2^51761158447 is an apocalyptic number.

51761158447 is a deficient number, since it is larger than the sum of its proper divisors (1).

51761158447 is an equidigital number, since it uses as much as digits as its factorization.

51761158447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 940800, while the sum is 49.

The spelling of 51761158447 in words is "fifty-one billion, seven hundred sixty-one million, one hundred fifty-eight thousand, four hundred forty-seven".