28451141894591 has 12 divisors (see below), whose sum is σ = 30940264618848. Its totient is φ = 26149877492544.

The previous prime is 28451141894579. The next prime is 28451141894621. The reversal of 28451141894591 is 19549814115482.

It is not a de Polignac number, because 28451141894591 - 2⁴² = 24053095383487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28451141899591) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 361226615 + ... + 361305368.

It is an arithmetic number, because the mean of its divisors is an integer number (2578355384904).

Almost surely, 2^{28451141894591} is an apocalyptic number.

28451141894591 is a deficient number, since it is larger than the sum of its proper divisors (2489122724257).

28451141894591 is a wasteful number, since it uses less digits than its factorization.

28451141894591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722532242 (or 722532229 counting only the distinct ones).

The product of its digits is 16588800, while the sum is 62.

The spelling of 28451141894591 in words is "twenty-eight trillion, four hundred fifty-one billion, one hundred forty-one million, eight hundred ninety-four thousand, five hundred ninety-one".