28895817001605 has 32 divisors (see below), whose sum is σ = 48243805320960. Its totient is φ = 14740946204160.

The previous prime is 28895817001561. The next prime is 28895817001609. The reversal of 28895817001605 is 50610071859882.

It is not a de Polignac number, because 28895817001605 - 2¹⁶ = 28895816936069 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28895817001609) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69977145 + ... + 70388865.

It is an arithmetic number, because the mean of its divisors is an integer number (1507618916280).

Almost surely, 2^{28895817001605} is an apocalyptic number.

It is an amenable number.

28895817001605 is a deficient number, since it is larger than the sum of its proper divisors (19347988319355).

28895817001605 is a wasteful number, since it uses less digits than its factorization.

28895817001605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615181.

The product of its (nonzero) digits is 9676800, while the sum is 60.

The spelling of 28895817001605 in words is "twenty-eight trillion, eight hundred ninety-five billion, eight hundred seventeen million, one thousand, six hundred five".