1143923744385 has 24 divisors (see below), whose sum is σ = 1983471932520. Its totient is φ = 609886271232.

The previous prime is 1143923744351. The next prime is 1143923744389. The reversal of 1143923744385 is 5834473293411.

1143923744385 is a `hidden beast` number, since 1 + 1 + 4 + 3 + 92 + 37 + 443 + 85 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 91469348721 + 1052454395664 = 302439^2 + 1025892^2 .

It is not a de Polignac number, because 1143923744385 - 2⁸ = 1143923744129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1143923744389) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4165300 + ... + 4431429.

It is an arithmetic number, because the mean of its divisors is an integer number (82644663855).

Almost surely, 2^{1143923744385} is an apocalyptic number.

1143923744385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1143923744385 is a deficient number, since it is larger than the sum of its proper divisors (839548188135).

1143923744385 is a wasteful number, since it uses less digits than its factorization.

1143923744385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8599697 (or 8599694 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 54.

The spelling of 1143923744385 in words is "one trillion, one hundred forty-three billion, nine hundred twenty-three million, seven hundred forty-four thousand, three hundred eighty-five".