105494831913 has 16 divisors (see below), whose sum is σ = 142665532416. Its totient is φ = 69327352080.

The previous prime is 105494831909. The next prime is 105494831951. The reversal of 105494831913 is 319138494501.

It is not a de Polignac number, because 105494831913 - 2² = 105494831909 is a prime.

It is a super-2 number, since 2×105494831913² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105494831903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1290970 + ... + 1370252.

It is an arithmetic number, because the mean of its divisors is an integer number (8916595776).

Almost surely, 2^105494831913 is an apocalyptic number.

It is an amenable number.

105494831913 is a deficient number, since it is larger than the sum of its proper divisors (37170700503).

105494831913 is an equidigital number, since it uses as much as digits as its factorization.

105494831913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85604.

The product of its (nonzero) digits is 466560, while the sum is 48.

The spelling of 105494831913 in words is "one hundred five billion, four hundred ninety-four million, eight hundred thirty-one thousand, nine hundred thirteen".