29128103661907 has 2 divisors, whose sum is σ = 29128103661908. Its totient is φ = 29128103661906.

The previous prime is 29128103661851. The next prime is 29128103661919. The reversal of 29128103661907 is 70916630182192.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29128103661907 is a prime.

It is not a weakly prime, because it can be changed into another prime (29128103661997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14564051830953 + 14564051830954.

It is an arithmetic number, because the mean of its divisors is an integer number (14564051830954).

Almost surely, 2^{29128103661907} is an apocalyptic number.

29128103661907 is a deficient number, since it is larger than the sum of its proper divisors (1).

29128103661907 is an equidigital number, since it uses as much as digits as its factorization.

29128103661907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1959552, while the sum is 55.

The spelling of 29128103661907 in words is "twenty-nine trillion, one hundred twenty-eight billion, one hundred three million, six hundred sixty-one thousand, nine hundred seven".