28452691053 has 24 divisors (see below), whose sum is σ = 43734600000. Its totient is φ = 17762937984.

The previous prime is 28452691037. The next prime is 28452691061. The reversal of 28452691053 is 35019625482.

28452691053 is a `hidden beast` number, since 284 + 5 + 269 + 105 + 3 = 666.

It is not a de Polignac number, because 28452691053 - 2⁴ = 28452691037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28452691093) 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, 436803 + ... + 497696.

It is an arithmetic number, because the mean of its divisors is an integer number (1822275000).

Almost surely, 2^28452691053 is an apocalyptic number.

It is an amenable number.

28452691053 is a deficient number, since it is larger than the sum of its proper divisors (15281908947).

28452691053 is a wasteful number, since it uses less digits than its factorization.

28452691053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934721 (or 934718 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The spelling of 28452691053 in words is "twenty-eight billion, four hundred fifty-two million, six hundred ninety-one thousand, fifty-three".