1143508377845 has 8 divisors (see below), whose sum is σ = 1372235092920. Its totient is φ = 914790009280.

The previous prime is 1143508377773. The next prime is 1143508377877. The reversal of 1143508377845 is 5487738053411.

It can be written as a sum of positive squares in 4 ways, for example, as 65736344881 + 1077772032964 = 256391^2 + 1038158^2 .

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

It is not a de Polignac number, because 1143508377845 - 2³⁴ = 1126328508661 is a prime.

It is a super-2 number, since 2×1143508377845² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 1781150 + ... + 2336559.

It is an arithmetic number, because the mean of its divisors is an integer number (171529386615).

Almost surely, 2^{1143508377845} is an apocalyptic number.

It is an amenable number.

1143508377845 is a deficient number, since it is larger than the sum of its proper divisors (228726715075).

1143508377845 is an equidigital number, since it uses as much as digits as its factorization.

1143508377845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4173255.

The product of its (nonzero) digits is 11289600, while the sum is 56.

The spelling of 1143508377845 in words is "one trillion, one hundred forty-three billion, five hundred eight million, three hundred seventy-seven thousand, eight hundred forty-five".