28064597801 has 4 divisors (see below), whose sum is σ = 28278831504. Its totient is φ = 27850364100.

The previous prime is 28064597773. The next prime is 28064597807. The reversal of 28064597801 is 10879546082.

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.

It is a cyclic number.

It is not a de Polignac number, because 28064597801 - 2¹⁴ = 28064581417 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28064597801.

It is not an unprimeable number, because it can be changed into a prime (28064597807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107116655 + ... + 107116916.

It is an arithmetic number, because the mean of its divisors is an integer number (7069707876).

Almost surely, 2^28064597801 is an apocalyptic number.

It is an amenable number.

28064597801 is a deficient number, since it is larger than the sum of its proper divisors (214233703).

28064597801 is a wasteful number, since it uses less digits than its factorization.

28064597801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214233702.

The product of its (nonzero) digits is 967680, while the sum is 50.

The spelling of 28064597801 in words is "twenty-eight billion, sixty-four million, five hundred ninety-seven thousand, eight hundred one".