1142868685841 has 4 divisors (see below), whose sum is σ = 1182277950900. Its totient is φ = 1103459420784.

The previous prime is 1142868685823. The next prime is 1142868685859. The reversal of 1142868685841 is 1485868682411.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1142868685823) and next prime (1142868685859).

It can be written as a sum of positive squares in 2 ways, for example, as 909599005441 + 233269680400 = 953729^2 + 482980^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1142868685841 is a prime.

It is a super-2 number, since 2×1142868685841² (a number of 25 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 (1142868685811) 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, 19704632486 + ... + 19704632543.

It is an arithmetic number, because the mean of its divisors is an integer number (295569487725).

Almost surely, 2^{1142868685841} is an apocalyptic number.

It is an amenable number.

1142868685841 is a deficient number, since it is larger than the sum of its proper divisors (39409265059).

1142868685841 is an equidigital number, since it uses as much as digits as its factorization.

1142868685841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39409265058.

The product of its digits is 23592960, while the sum is 62.

The spelling of 1142868685841 in words is "one trillion, one hundred forty-two billion, eight hundred sixty-eight million, six hundred eighty-five thousand, eight hundred forty-one".