10898217640 has 16 divisors (see below), whose sum is σ = 24520989780. Its totient is φ = 4359287040.

The previous prime is 10898217611. The next prime is 10898217647. The reversal of 10898217640 is 4671289801.

It can be written as a sum of positive squares in 2 ways, for example, as 10844723044 + 53494596 = 104138^2 + 7314^2 .

It is a super-2 number, since 2×10898217640² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10898217647) 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, 136227681 + ... + 136227760.

Almost surely, 2^10898217640 is an apocalyptic number.

10898217640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10898217640 is an abundant number, since it is smaller than the sum of its proper divisors (13622772140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10898217640 is a wasteful number, since it uses less digits than its factorization.

10898217640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272455452 (or 272455448 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 46.

The spelling of 10898217640 in words is "ten billion, eight hundred ninety-eight million, two hundred seventeen thousand, six hundred forty".