1138654033805 has 16 divisors (see below), whose sum is σ = 1399819793904. Its totient is φ = 888636702720.

The previous prime is 1138654033801. The next prime is 1138654033843. The reversal of 1138654033805 is 5083304568311.

It can be written as a sum of positive squares in 8 ways, for example, as 198619074889 + 940034958916 = 445667^2 + 969554^2 .

It is not a de Polignac number, because 1138654033805 - 2² = 1138654033801 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1138654033805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1138654033801) by changing a digit.

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, 2520557 + ... + 2937773.

It is an arithmetic number, because the mean of its divisors is an integer number (87488737119).

Almost surely, 2^{1138654033805} is an apocalyptic number.

It is an amenable number.

1138654033805 is a deficient number, since it is larger than the sum of its proper divisors (261165760099).

1138654033805 is a wasteful number, since it uses less digits than its factorization.

1138654033805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430576.

The product of its (nonzero) digits is 1036800, while the sum is 47.

The spelling of 1138654033805 in words is "one trillion, one hundred thirty-eight billion, six hundred fifty-four million, thirty-three thousand, eight hundred five".