28944597671 has 6 divisors (see below), whose sum is σ = 31815136416. Its totient is φ = 26313270500.

The previous prime is 28944597631. The next prime is 28944597691. The reversal of 28944597671 is 17679544982.

It is not a de Polignac number, because 28944597671 - 2¹⁸ = 28944335527 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 (28944597631) 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, 119605655 + ... + 119605896.

It is an arithmetic number, because the mean of its divisors is an integer number (5302522736).

Almost surely, 2^28944597671 is an apocalyptic number.

28944597671 is a deficient number, since it is larger than the sum of its proper divisors (2870538745).

28944597671 is a wasteful number, since it uses less digits than its factorization.

28944597671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239211573 (or 239211562 counting only the distinct ones).

The product of its digits is 30481920, while the sum is 62.

The spelling of 28944597671 in words is "twenty-eight billion, nine hundred forty-four million, five hundred ninety-seven thousand, six hundred seventy-one".