28341221361 has 8 divisors (see below), whose sum is σ = 37886960640. Its totient is φ = 18844814832.

The previous prime is 28341221317. The next prime is 28341221369. The reversal of 28341221361 is 16312214382.

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

It is not a de Polignac number, because 28341221361 - 2²⁵ = 28307666929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28341221369) 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 7 ways as a sum of consecutive naturals, for example, 12331846 + ... + 12334143.

It is an arithmetic number, because the mean of its divisors is an integer number (4735870080).

Almost surely, 2^28341221361 is an apocalyptic number.

It is an amenable number.

28341221361 is a deficient number, since it is larger than the sum of its proper divisors (9545739279).

28341221361 is a wasteful number, since it uses less digits than its factorization.

28341221361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24666375.

The product of its digits is 13824, while the sum is 33.

The spelling of 28341221361 in words is "twenty-eight billion, three hundred forty-one million, two hundred twenty-one thousand, three hundred sixty-one".