28651550195 has 4 divisors (see below), whose sum is σ = 34381860240. Its totient is φ = 22921240152.

The previous prime is 28651550171. The next prime is 28651550209. The reversal of 28651550195 is 59105515682.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 59105515682 = 2 ⋅29552757841.

It is a cyclic number.

It is not a de Polignac number, because 28651550195 - 2⁸ = 28651549939 is a prime.

It is a super-2 number, since 2×28651550195² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2865155015 + ... + 2865155024.

It is an arithmetic number, because the mean of its divisors is an integer number (8595465060).

Almost surely, 2^28651550195 is an apocalyptic number.

28651550195 is a deficient number, since it is larger than the sum of its proper divisors (5730310045).

28651550195 is an equidigital number, since it uses as much as digits as its factorization.

28651550195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5730310044.

The product of its (nonzero) digits is 540000, while the sum is 47.

The spelling of 28651550195 in words is "twenty-eight billion, six hundred fifty-one million, five hundred fifty thousand, one hundred ninety-five".