10684559391 has 16 divisors (see below), whose sum is σ = 15577256448. Its totient is φ = 6460457600.

The previous prime is 10684559387. The next prime is 10684559411. The reversal of 10684559391 is 19395548601.

It is a cyclic number.

It is not a de Polignac number, because 10684559391 - 2² = 10684559387 is a prime.

It is a super-2 number, since 2×10684559391² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10684559341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 361386 + ... + 389831.

It is an arithmetic number, because the mean of its divisors is an integer number (973578528).

Almost surely, 2^10684559391 is an apocalyptic number.

10684559391 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10684559391 is a deficient number, since it is larger than the sum of its proper divisors (4892697057).

10684559391 is a wasteful number, since it uses less digits than its factorization.

10684559391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751662.

The product of its (nonzero) digits is 1166400, while the sum is 51.

It can be divided in two parts, 10684 and 559391, that added together give a palindrome (570075).

The spelling of 10684559391 in words is "ten billion, six hundred eighty-four million, five hundred fifty-nine thousand, three hundred ninety-one".