105870917995 has 4 divisors (see below), whose sum is σ = 127045101600. Its totient is φ = 84696734392.

The previous prime is 105870917989. The next prime is 105870918017. The reversal of 105870917995 is 599719078501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 599719078501 = 17 ⋅35277592853.

It is a cyclic number.

It is not a de Polignac number, because 105870917995 - 2²⁵ = 105837363563 is a prime.

It is a super-4 number, since 4×105870917995⁴ (a number of 45 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10587091795 + ... + 10587091804.

It is an arithmetic number, because the mean of its divisors is an integer number (31761275400).

Almost surely, 2^105870917995 is an apocalyptic number.

105870917995 is a deficient number, since it is larger than the sum of its proper divisors (21174183605).

105870917995 is an equidigital number, since it uses as much as digits as its factorization.

105870917995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21174183604.

The product of its (nonzero) digits is 7144200, while the sum is 61.

The spelling of 105870917995 in words is "one hundred five billion, eight hundred seventy million, nine hundred seventeen thousand, nine hundred ninety-five".