1151871944105 has 8 divisors (see below), whose sum is σ = 1419604342152. Its totient is φ = 896592215808.

The previous prime is 1151871944087. The next prime is 1151871944107. The reversal of 1151871944105 is 5014491781511.

It can be written as a sum of positive squares in 4 ways, for example, as 553583617024 + 598288327081 = 744032^2 + 773491^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1151871944105 - 2¹⁶ = 1151871878569 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1151871944105.

It is not an unprimeable number, because it can be changed into a prime (1151871944107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3113167232 + ... + 3113167601.

It is an arithmetic number, because the mean of its divisors is an integer number (177450542769).

Almost surely, 2^{1151871944105} is an apocalyptic number.

It is an amenable number.

1151871944105 is a deficient number, since it is larger than the sum of its proper divisors (267732398047).

1151871944105 is an equidigital number, since it uses as much as digits as its factorization.

1151871944105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6226334875.

The product of its (nonzero) digits is 201600, while the sum is 47.

The spelling of 1151871944105 in words is "one trillion, one hundred fifty-one billion, eight hundred seventy-one million, nine hundred forty-four thousand, one hundred five".