51902615696429 has 2 divisors, whose sum is σ = 51902615696430. Its totient is φ = 51902615696428.

The previous prime is 51902615696401. The next prime is 51902615696501. The reversal of 51902615696429 is 92469651620915.

51902615696429 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40650851143204 + 11251764553225 = 6375802^2 + 3354365^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51902615696429 is a prime.

It is a super-2 number, since 2×51902615696429² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51902615696329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25951307848214 + 25951307848215.

It is an arithmetic number, because the mean of its divisors is an integer number (25951307848215).

Almost surely, 2^{51902615696429} is an apocalyptic number.

It is an amenable number.

51902615696429 is a deficient number, since it is larger than the sum of its proper divisors (1).

51902615696429 is an equidigital number, since it uses as much as digits as its factorization.

51902615696429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62985600, while the sum is 65.

The spelling of 51902615696429 in words is "fifty-one trillion, nine hundred two billion, six hundred fifteen million, six hundred ninety-six thousand, four hundred twenty-nine".