28064767161 has 8 divisors (see below), whose sum is σ = 37422138880. Its totient is φ = 18708620112.

The previous prime is 28064767127. The next prime is 28064767163. The reversal of 28064767161 is 16176746082.

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

It is not a de Polignac number, because 28064767161 - 2³⁴ = 10884897977 is a prime.

It is a super-2 number, since 2×28064767161² (a number of 22 digits) contains 22 as substring.

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 28064767161.

It is not an unprimeable number, because it can be changed into a prime (28064767163) 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 7 ways as a sum of consecutive naturals, for example, 251290 + ... + 345363.

It is an arithmetic number, because the mean of its divisors is an integer number (4677767360).

Almost surely, 2^28064767161 is an apocalyptic number.

It is an amenable number.

28064767161 is a deficient number, since it is larger than the sum of its proper divisors (9357371719).

28064767161 is a wasteful number, since it uses less digits than its factorization.

28064767161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612335.

The product of its (nonzero) digits is 677376, while the sum is 48.

The spelling of 28064767161 in words is "twenty-eight billion, sixty-four million, seven hundred sixty-seven thousand, one hundred sixty-one".