105885786641 has 4 divisors (see below), whose sum is σ = 111458722800. Its totient is φ = 100312850484.

The previous prime is 105885786631. The next prime is 105885786653. The reversal of 105885786641 is 146687588501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105885786641 is a prime.

It is a super-2 number, since 2×105885786641² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (105885786631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2786468051 + ... + 2786468088.

It is an arithmetic number, because the mean of its divisors is an integer number (27864680700).

Almost surely, 2^105885786641 is an apocalyptic number.

It is an amenable number.

105885786641 is a deficient number, since it is larger than the sum of its proper divisors (5572936159).

105885786641 is an equidigital number, since it uses as much as digits as its factorization.

105885786641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5572936158.

The product of its (nonzero) digits is 12902400, while the sum is 59.

The spelling of 105885786641 in words is "one hundred five billion, eight hundred eighty-five million, seven hundred eighty-six thousand, six hundred forty-one".