28757896173230 has 48 divisors (see below), whose sum is σ = 60216341674896. Its totient is φ = 9859714462080.

The previous prime is 28757896173077. The next prime is 28757896173233. The reversal of 28757896173230 is 3237169875782.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28757896173233) 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, 39209537 + ... + 39936243.

It is an arithmetic number, because the mean of its divisors is an integer number (1254507118227).

Almost surely, 2^{28757896173230} is an apocalyptic number.

28757896173230 is an abundant number, since it is smaller than the sum of its proper divisors (31458445501666).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28757896173230 is a wasteful number, since it uses less digits than its factorization.

28757896173230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807489 (or 807482 counting only the distinct ones).

The product of its (nonzero) digits is 213373440, while the sum is 68.

The spelling of 28757896173230 in words is "twenty-eight trillion, seven hundred fifty-seven billion, eight hundred ninety-six million, one hundred seventy-three thousand, two hundred thirty".