105389694507 has 4 divisors (see below), whose sum is σ = 140519592680. Its totient is φ = 70259796336.

The previous prime is 105389694493. The next prime is 105389694523. The reversal of 105389694507 is 705496983501.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 105389694507 - 2¹¹ = 105389692459 is a prime.

It is a super-2 number, since 2×105389694507² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105389694307) 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 3 ways as a sum of consecutive naturals, for example, 17564949082 + ... + 17564949087.

It is an arithmetic number, because the mean of its divisors is an integer number (35129898170).

Almost surely, 2^105389694507 is an apocalyptic number.

105389694507 is a deficient number, since it is larger than the sum of its proper divisors (35129898173).

105389694507 is an equidigital number, since it uses as much as digits as its factorization.

105389694507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35129898172.

The product of its (nonzero) digits is 8164800, while the sum is 57.

The spelling of 105389694507 in words is "one hundred five billion, three hundred eighty-nine million, six hundred ninety-four thousand, five hundred seven".