29128103661851 has 2 divisors, whose sum is σ = 29128103661852. Its totient is φ = 29128103661850.

The previous prime is 29128103661757. The next prime is 29128103661907. The reversal of 29128103661851 is 15816630182192.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 29128103661851 - 2³⁴ = 29110923792667 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 29128103661793 and 29128103661802.

It is not a weakly prime, because it can be changed into another prime (29128103661451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14564051830925 + 14564051830926.

It is an arithmetic number, because the mean of its divisors is an integer number (14564051830926).

Almost surely, 2^{29128103661851} is an apocalyptic number.

29128103661851 is a deficient number, since it is larger than the sum of its proper divisors (1).

29128103661851 is an equidigital number, since it uses as much as digits as its factorization.

29128103661851 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1244160, while the sum is 53.

The spelling of 29128103661851 in words is "twenty-nine trillion, one hundred twenty-eight billion, one hundred three million, six hundred sixty-one thousand, eight hundred fifty-one".