51402383629 has 2 divisors, whose sum is σ = 51402383630. Its totient is φ = 51402383628.

The previous prime is 51402383603. The next prime is 51402383701. The reversal of 51402383629 is 92638320415.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51397424100 + 4959529 = 226710^2 + 2227^2 .

It is a cyclic number.

It is not a de Polignac number, because 51402383629 - 2³⁵ = 17042645261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51402380629) 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, 25701191814 + 25701191815.

It is an arithmetic number, because the mean of its divisors is an integer number (25701191815).

Almost surely, 2^51402383629 is an apocalyptic number.

It is an amenable number.

51402383629 is a deficient number, since it is larger than the sum of its proper divisors (1).

51402383629 is an equidigital number, since it uses as much as digits as its factorization.

51402383629 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 311040, while the sum is 43.

The spelling of 51402383629 in words is "fifty-one billion, four hundred two million, three hundred eighty-three thousand, six hundred twenty-nine".