28597232945 has 8 divisors (see below), whose sum is σ = 34319132736. Its totient is φ = 22876150896.

The previous prime is 28597232933. The next prime is 28597232953. The reversal of 28597232945 is 54923279582.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28597232945 - 2⁴ = 28597232929 is a prime.

It is a super-2 number, since 2×28597232945² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124667 + ... + 269696.

It is an arithmetic number, because the mean of its divisors is an integer number (4289891592).

Almost surely, 2^28597232945 is an apocalyptic number.

It is an amenable number.

28597232945 is a deficient number, since it is larger than the sum of its proper divisors (5721899791).

28597232945 is a wasteful number, since it uses less digits than its factorization.

28597232945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408871.

The product of its digits is 10886400, while the sum is 56.

The spelling of 28597232945 in words is "twenty-eight billion, five hundred ninety-seven million, two hundred thirty-two thousand, nine hundred forty-five".