28446350745601 has 4 divisors (see below), whose sum is σ = 28447929975892. Its totient is φ = 28444771515312.

The previous prime is 28446350745509. The next prime is 28446350745619. The reversal of 28446350745601 is 10654705364482.

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 27680067604225 + 766283141376 = 5261185^2 + 875376^2 .

It is a cyclic number.

It is not a de Polignac number, because 28446350745601 - 2⁷ = 28446350745473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28446350745691) 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, 789588126 + ... + 789624151.

It is an arithmetic number, because the mean of its divisors is an integer number (7111982493973).

Almost surely, 2^{28446350745601} is an apocalyptic number.

It is an amenable number.

28446350745601 is a deficient number, since it is larger than the sum of its proper divisors (1579230291).

28446350745601 is a wasteful number, since it uses less digits than its factorization.

28446350745601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1579230290.

The product of its (nonzero) digits is 19353600, while the sum is 55.

The spelling of 28446350745601 in words is "twenty-eight trillion, four hundred forty-six billion, three hundred fifty million, seven hundred forty-five thousand, six hundred one".