51534071629 has 2 divisors, whose sum is σ = 51534071630. Its totient is φ = 51534071628.

The previous prime is 51534071599. The next prime is 51534071671. The reversal of 51534071629 is 92617043515.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42138646729 + 9395424900 = 205277^2 + 96930^2 .

It is a cyclic number.

It is not a de Polignac number, because 51534071629 - 2²³ = 51525683021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51534071129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25767035814 + 25767035815.

It is an arithmetic number, because the mean of its divisors is an integer number (25767035815).

Almost surely, 2^51534071629 is an apocalyptic number.

It is an amenable number.

51534071629 is a deficient number, since it is larger than the sum of its proper divisors (1).

51534071629 is an equidigital number, since it uses as much as digits as its factorization.

51534071629 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 226800, while the sum is 43.

The spelling of 51534071629 in words is "fifty-one billion, five hundred thirty-four million, seventy-one thousand, six hundred twenty-nine".