28753555842 has 24 divisors (see below), whose sum is σ = 67962950640. Its totient is φ = 8713198680.

The previous prime is 28753555811. The next prime is 28753555843. The reversal of 28753555842 is 24855535782.

It is a happy number.

28753555842 is a `hidden beast` number, since 2 + 8 + 7 + 5 + 3 + 55 + 584 + 2 = 666.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (28753555843) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72609792 + ... + 72610187.

It is an arithmetic number, because the mean of its divisors is an integer number (2831789610).

Almost surely, 2^28753555842 is an apocalyptic number.

28753555842 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28753555842 is an abundant number, since it is smaller than the sum of its proper divisors (39209394798).

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

28753555842 is a wasteful number, since it uses less digits than its factorization.

28753555842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145219998 (or 145219995 counting only the distinct ones).

The product of its digits is 13440000, while the sum is 54.

The spelling of 28753555842 in words is "twenty-eight billion, seven hundred fifty-three million, five hundred fifty-five thousand, eight hundred forty-two".