109259626457685 has 48 divisors (see below), whose sum is σ = 196240817541888. Its totient is φ = 51847250167680.

The previous prime is 109259626457671. The next prime is 109259626457687. The reversal of 109259626457685 is 586754626952901.

It is not a de Polignac number, because 109259626457685 - 2²² = 109259622263381 is a prime.

It is a super-2 number, since 2×109259626457685² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109259626457687) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 640320454 + ... + 640491063.

It is an arithmetic number, because the mean of its divisors is an integer number (4088350365456).

Almost surely, 2^{109259626457685} is an apocalyptic number.

109259626457685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

109259626457685 is a deficient number, since it is larger than the sum of its proper divisors (86981191084203).

109259626457685 is a wasteful number, since it uses less digits than its factorization.

109259626457685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1280811594 (or 1280811583 counting only the distinct ones).

The product of its (nonzero) digits is 1959552000, while the sum is 75.

The spelling of 109259626457685 in words is "one hundred nine trillion, two hundred fifty-nine billion, six hundred twenty-six million, four hundred fifty-seven thousand, six hundred eighty-five".