28542785975 has 12 divisors (see below), whose sum is σ = 38610605400. Its totient is φ = 20758389600.

The previous prime is 28542785969. The next prime is 28542785989. The reversal of 28542785975 is 57958724582.

It is not a de Polignac number, because 28542785975 - 2²⁴ = 28526008759 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51895700 + ... + 51896249.

It is an arithmetic number, because the mean of its divisors is an integer number (3217550450).

Almost surely, 2^28542785975 is an apocalyptic number.

28542785975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28542785975 is a deficient number, since it is larger than the sum of its proper divisors (10067819425).

28542785975 is a wasteful number, since it uses less digits than its factorization.

28542785975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103791970 (or 103791965 counting only the distinct ones).

The product of its digits is 56448000, while the sum is 62.

The spelling of 28542785975 in words is "twenty-eight billion, five hundred forty-two million, seven hundred eighty-five thousand, nine hundred seventy-five".