29445568073 has 4 divisors (see below), whose sum is σ = 29633119620. Its totient is φ = 29258016528.

The previous prime is 29445568057. The next prime is 29445568129. The reversal of 29445568073 is 37086554492.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13176055369 + 16269512704 = 114787^2 + 127552^2 .

It is a cyclic number.

It is not a de Polignac number, because 29445568073 - 2⁴ = 29445568057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29445568043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93775538 + ... + 93775851.

It is an arithmetic number, because the mean of its divisors is an integer number (7408279905).

Almost surely, 2^29445568073 is an apocalyptic number.

It is an amenable number.

29445568073 is a deficient number, since it is larger than the sum of its proper divisors (187551547).

29445568073 is a wasteful number, since it uses less digits than its factorization.

29445568073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187551546.

The product of its (nonzero) digits is 7257600, while the sum is 53.

The spelling of 29445568073 in words is "twenty-nine billion, four hundred forty-five million, five hundred sixty-eight thousand, seventy-three".