28505155151 has 8 divisors (see below), whose sum is σ = 31110649344. Its totient is φ = 25902013720.

The previous prime is 28505155141. The next prime is 28505155153. The reversal of 28505155151 is 15155150582.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28505155151 - 2³⁰ = 27431413327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28505155153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 562805 + ... + 611358.

It is an arithmetic number, because the mean of its divisors is an integer number (3888831168).

Almost surely, 2^28505155151 is an apocalyptic number.

28505155151 is a deficient number, since it is larger than the sum of its proper divisors (2605494193).

28505155151 is a wasteful number, since it uses less digits than its factorization.

28505155151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1176381.

The product of its (nonzero) digits is 50000, while the sum is 38.

The spelling of 28505155151 in words is "twenty-eight billion, five hundred five million, one hundred fifty-five thousand, one hundred fifty-one".