10898720685 has 24 divisors (see below), whose sum is σ = 19500509184. Its totient is φ = 5625145440.

The previous prime is 10898720669. The next prime is 10898720711. The reversal of 10898720685 is 58602789801.

It is not a de Polignac number, because 10898720685 - 2⁴ = 10898720669 is a prime.

It is a super-2 number, since 2×10898720685² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3904957 + ... + 3907746.

It is an arithmetic number, because the mean of its divisors is an integer number (812521216).

Almost surely, 2^10898720685 is an apocalyptic number.

10898720685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10898720685 is a deficient number, since it is larger than the sum of its proper divisors (8601788499).

10898720685 is a wasteful number, since it uses less digits than its factorization.

10898720685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7812745 (or 7812742 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 54.

The spelling of 10898720685 in words is "ten billion, eight hundred ninety-eight million, seven hundred twenty thousand, six hundred eighty-five".