1143388722867 has 16 divisors (see below), whose sum is σ = 1544053754880. Its totient is φ = 752494392000.

The previous prime is 1143388722851. The next prime is 1143388722869. The reversal of 1143388722867 is 7682278833411.

It is not a de Polignac number, because 1143388722867 - 2⁴ = 1143388722851 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1143388722867.

It is not an unprimeable number, because it can be changed into a prime (1143388722869) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1184367 + ... + 1920807.

It is an arithmetic number, because the mean of its divisors is an integer number (96503359680).

Almost surely, 2^{1143388722867} is an apocalyptic number.

1143388722867 is a deficient number, since it is larger than the sum of its proper divisors (400665032013).

1143388722867 is an equidigital number, since it uses as much as digits as its factorization.

1143388722867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743074.

The product of its digits is 21676032, while the sum is 60.

The spelling of 1143388722867 in words is "one trillion, one hundred forty-three billion, three hundred eighty-eight million, seven hundred twenty-two thousand, eight hundred sixty-seven".