11871373251145 has 16 divisors (see below), whose sum is σ = 14435051160960. Its totient is φ = 9371264425600.

The previous prime is 11871373251079. The next prime is 11871373251151. The reversal of 11871373251145 is 54115237317811.

It is not a de Polignac number, because 11871373251145 - 2¹⁷ = 11871373120073 is a prime.

It is a super-4 number, since 4×11871373251145⁴ (a number of 53 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 pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26947741 + ... + 27384730.

It is an arithmetic number, because the mean of its divisors is an integer number (902190697560).

Almost surely, 2^{11871373251145} is an apocalyptic number.

It is an amenable number.

11871373251145 is a deficient number, since it is larger than the sum of its proper divisors (2563677909815).

11871373251145 is an equidigital number, since it uses as much as digits as its factorization.

11871373251145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54333056.

The product of its digits is 705600, while the sum is 49.

The spelling of 11871373251145 in words is "eleven trillion, eight hundred seventy-one billion, three hundred seventy-three million, two hundred fifty-one thousand, one hundred forty-five".