28160100157 has 4 divisors (see below), whose sum is σ = 32182971616. Its totient is φ = 24137228700.

The previous prime is 28160100139. The next prime is 28160100161. The reversal of 28160100157 is 75100106182.

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, and also an emirpimes, since its reverse is a distinct semiprime: 75100106182 = 2 ⋅37550053091.

It is a cyclic number.

It is not a de Polignac number, because 28160100157 - 2¹⁹ = 28159575869 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 (28160100197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2011435719 + ... + 2011435732.

It is an arithmetic number, because the mean of its divisors is an integer number (8045742904).

Almost surely, 2^28160100157 is an apocalyptic number.

It is an amenable number.

28160100157 is a deficient number, since it is larger than the sum of its proper divisors (4022871459).

28160100157 is an equidigital number, since it uses as much as digits as its factorization.

28160100157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4022871458.

The product of its (nonzero) digits is 3360, while the sum is 31.

The spelling of 28160100157 in words is "twenty-eight billion, one hundred sixty million, one hundred thousand, one hundred fifty-seven".