28927123325 has 24 divisors (see below), whose sum is σ = 37864689600. Its totient is φ = 21861480960.

The previous prime is 28927123321. The next prime is 28927123327. The reversal of 28927123325 is 52332172982.

It is not a de Polignac number, because 28927123325 - 2² = 28927123321 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28927123321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81416 + ... + 253934.

It is an arithmetic number, because the mean of its divisors is an integer number (1577695400).

Almost surely, 2^28927123325 is an apocalyptic number.

28927123325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28927123325 is a deficient number, since it is larger than the sum of its proper divisors (8937566275).

28927123325 is a wasteful number, since it uses less digits than its factorization.

28927123325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172901 (or 172896 counting only the distinct ones).

The product of its digits is 362880, while the sum is 44.

It can be divided in two parts, 2892 and 7123325, that added together give a palindrome (7126217).

The spelling of 28927123325 in words is "twenty-eight billion, nine hundred twenty-seven million, one hundred twenty-three thousand, three hundred twenty-five".