28601482061 has 4 divisors (see below), whose sum is σ = 28651051932. Its totient is φ = 28551912192.

The previous prime is 28601481911. The next prime is 28601482067. The reversal of 28601482061 is 16028410682.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28180001161 + 421480900 = 167869^2 + 20530^2 .

It is a cyclic number.

It is not a de Polignac number, because 28601482061 - 2³⁰ = 27527740237 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 (28601482067) 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, 24784070 + ... + 24785223.

It is an arithmetic number, because the mean of its divisors is an integer number (7162762983).

Almost surely, 2^28601482061 is an apocalyptic number.

It is an amenable number.

28601482061 is a deficient number, since it is larger than the sum of its proper divisors (49569871).

28601482061 is an equidigital number, since it uses as much as digits as its factorization.

28601482061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49569870.

The product of its (nonzero) digits is 36864, while the sum is 38.

The spelling of 28601482061 in words is "twenty-eight billion, six hundred one million, four hundred eighty-two thousand, sixty-one".