69105905949 has 16 divisors (see below), whose sum is σ = 94111234560. Its totient is φ = 45094927920.

The previous prime is 69105905929. The next prime is 69105905959. The reversal of 69105905949 is 94950950196.

It is not a de Polignac number, because 69105905949 - 2²⁰ = 69104857373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69105905929) 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, 1137447 + ... + 1196660.

It is an arithmetic number, because the mean of its divisors is an integer number (5881952160).

Almost surely, 2^69105905949 is an apocalyptic number.

It is an amenable number.

69105905949 is a deficient number, since it is larger than the sum of its proper divisors (25005328611).

69105905949 is a wasteful number, since it uses less digits than its factorization.

69105905949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2334320.

The product of its (nonzero) digits is 3936600, while the sum is 57.

The spelling of 69105905949 in words is "sixty-nine billion, one hundred five million, nine hundred five thousand, nine hundred forty-nine".