10288890217 has 4 divisors (see below), whose sum is σ = 10289391700. Its totient is φ = 10288388736.

The previous prime is 10288890187. The next prime is 10288890233. The reversal of 10288890217 is 71209888201.

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 3307285081 + 6981605136 = 57509^2 + 83556^2 .

It is a cyclic number.

It is not a de Polignac number, because 10288890217 - 2³¹ = 8141406569 is a prime.

It is a super-3 number, since 3×10288890217³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10288890247) 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, 218592 + ... + 261457.

It is an arithmetic number, because the mean of its divisors is an integer number (2572347925).

Almost surely, 2^10288890217 is an apocalyptic number.

It is an amenable number.

10288890217 is a deficient number, since it is larger than the sum of its proper divisors (501483).

10288890217 is an equidigital number, since it uses as much as digits as its factorization.

10288890217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501482.

The product of its (nonzero) digits is 129024, while the sum is 46.

The spelling of 10288890217 in words is "ten billion, two hundred eighty-eight million, eight hundred ninety thousand, two hundred seventeen".