28145182153 has 4 divisors (see below), whose sum is σ = 30703835088. Its totient is φ = 25586529220.

The previous prime is 28145182147. The next prime is 28145182181. The reversal of 28145182153 is 35128154182.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 28145182153 - 2⁹ = 28145181641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28145182103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1279326451 + ... + 1279326472.

It is an arithmetic number, because the mean of its divisors is an integer number (7675958772).

Almost surely, 2^28145182153 is an apocalyptic number.

It is an amenable number.

28145182153 is a deficient number, since it is larger than the sum of its proper divisors (2558652935).

28145182153 is a wasteful number, since it uses less digits than its factorization.

28145182153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2558652934.

The product of its digits is 76800, while the sum is 40.

The spelling of 28145182153 in words is "twenty-eight billion, one hundred forty-five million, one hundred eighty-two thousand, one hundred fifty-three".