10691923749558 has 32 divisors (see below), whose sum is σ = 21909225915360. Its totient is φ = 3476441840640.

The previous prime is 10691923749473. The next prime is 10691923749571. The reversal of 10691923749558 is 85594732919601.

It is a super-2 number, since 2×10691923749558² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10691923749492 and 10691923749501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2376663 + ... + 5199266.

It is an arithmetic number, because the mean of its divisors is an integer number (684663309855).

It is a 1-persistent number, because it is pandigital, but 2⋅10691923749558 = 21383847499116 is not.

Almost surely, 2^{10691923749558} is an apocalyptic number.

10691923749558 is an abundant number, since it is smaller than the sum of its proper divisors (11217302165802).

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

10691923749558 is a wasteful number, since it uses less digits than its factorization.

10691923749558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7581712.

The product of its (nonzero) digits is 146966400, while the sum is 69.

The spelling of 10691923749558 in words is "ten trillion, six hundred ninety-one billion, nine hundred twenty-three million, seven hundred forty-nine thousand, five hundred fifty-eight".