28301850601 has 4 divisors (see below), whose sum is σ = 28304866692. Its totient is φ = 28298834512.

The previous prime is 28301850571. The next prime is 28301850611. The reversal of 28301850601 is 10605810382.

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 24916938201 + 3384912400 = 157851^2 + 58180^2 .

It is a cyclic number.

It is not a de Polignac number, because 28301850601 - 2⁹ = 28301850089 is a prime.

It is a super-2 number, since 2×28301850601² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28301850611) 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, 1493926 + ... + 1512751.

It is an arithmetic number, because the mean of its divisors is an integer number (7076216673).

Almost surely, 2^28301850601 is an apocalyptic number.

It is an amenable number.

28301850601 is a deficient number, since it is larger than the sum of its proper divisors (3016091).

28301850601 is an equidigital number, since it uses as much as digits as its factorization.

28301850601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3016090.

The product of its (nonzero) digits is 11520, while the sum is 34.

The spelling of 28301850601 in words is "twenty-eight billion, three hundred one million, eight hundred fifty thousand, six hundred one".