29445074458021 has 6 divisors (see below), whose sum is σ = 31279023732530. Its totient is φ = 27713011254336.

The previous prime is 29445074457989. The next prime is 29445074458043. The reversal of 29445074458021 is 12085447054492.

It can be written as a sum of positive squares in 3 ways, for example, as 10948064793796 + 18497009664225 = 3308786^2 + 4300815^2 .

It is not a de Polignac number, because 29445074458021 - 2⁵ = 29445074457989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29445071458021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50943035106 + ... + 50943035683.

Almost surely, 2^{29445074458021} is an apocalyptic number.

It is an amenable number.

29445074458021 is a deficient number, since it is larger than the sum of its proper divisors (1833949274509).

29445074458021 is a wasteful number, since it uses less digits than its factorization.

29445074458021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101886070823 (or 101886070806 counting only the distinct ones).

The product of its (nonzero) digits is 12902400, while the sum is 55.

The spelling of 29445074458021 in words is "twenty-nine trillion, four hundred forty-five billion, seventy-four million, four hundred fifty-eight thousand, twenty-one".