29173485973 has 2 divisors, whose sum is σ = 29173485974. Its totient is φ = 29173485972.

The previous prime is 29173485947. The next prime is 29173486019. The reversal of 29173485973 is 37958437192.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28935030609 + 238455364 = 170103^2 + 15442^2 .

It is a cyclic number.

It is not a de Polignac number, because 29173485973 - 2⁹ = 29173485461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29173485073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14586742986 + 14586742987.

It is an arithmetic number, because the mean of its divisors is an integer number (14586742987).

Almost surely, 2^29173485973 is an apocalyptic number.

It is an amenable number.

29173485973 is a deficient number, since it is larger than the sum of its proper divisors (1).

29173485973 is an equidigital number, since it uses as much as digits as its factorization.

29173485973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11430720, while the sum is 58.

The spelling of 29173485973 in words is "twenty-nine billion, one hundred seventy-three million, four hundred eighty-five thousand, nine hundred seventy-three".