51627626429 has 2 divisors, whose sum is σ = 51627626430. Its totient is φ = 51627626428.

The previous prime is 51627626423. The next prime is 51627626459. The reversal of 51627626429 is 92462672615.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27850603225 + 23777023204 = 166885^2 + 154198^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51627626429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51627626423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25813813214 + 25813813215.

It is an arithmetic number, because the mean of its divisors is an integer number (25813813215).

Almost surely, 2^51627626429 is an apocalyptic number.

It is an amenable number.

51627626429 is a deficient number, since it is larger than the sum of its proper divisors (1).

51627626429 is an equidigital number, since it uses as much as digits as its factorization.

51627626429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2177280, while the sum is 50.

The spelling of 51627626429 in words is "fifty-one billion, six hundred twenty-seven million, six hundred twenty-six thousand, four hundred twenty-nine".