28064823007 has 16 divisors (see below), whose sum is σ = 30306124800. Its totient is φ = 25835408352.

The previous prime is 28064822977. The next prime is 28064823019. The reversal of 28064823007 is 70032846082.

It is a de Polignac number, because none of the positive numbers 2^k-28064823007 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 (28064823037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13602858 + ... + 13604920.

It is an arithmetic number, because the mean of its divisors is an integer number (1894132800).

Almost surely, 2^28064823007 is an apocalyptic number.

28064823007 is a deficient number, since it is larger than the sum of its proper divisors (2241301793).

28064823007 is a wasteful number, since it uses less digits than its factorization.

28064823007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4422.

The product of its (nonzero) digits is 129024, while the sum is 40.

The spelling of 28064823007 in words is "twenty-eight billion, sixty-four million, eight hundred twenty-three thousand, seven".