28775053575 has 120 divisors (see below), whose sum is σ = 55051476480. Its totient is φ = 14849049600.

The previous prime is 28775053547. The next prime is 28775053591. The reversal of 28775053575 is 57535057782.

28775053575 is a `hidden beast` number, since 2 + 87 + 7 + 505 + 3 + 57 + 5 = 666.

It is not a de Polignac number, because 28775053575 - 2¹⁴ = 28775037191 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 10542811 + ... + 10545539.

It is an arithmetic number, because the mean of its divisors is an integer number (458762304).

Almost surely, 2^28775053575 is an apocalyptic number.

28775053575 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28775053575 is a deficient number, since it is larger than the sum of its proper divisors (26276422905).

28775053575 is a wasteful number, since it uses less digits than its factorization.

28775053575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2919 (or 2905 counting only the distinct ones).

The product of its (nonzero) digits is 10290000, while the sum is 54.

The spelling of 28775053575 in words is "twenty-eight billion, seven hundred seventy-five million, fifty-three thousand, five hundred seventy-five".