1138618705652 has 24 divisors (see below), whose sum is σ = 2062684620360. Its totient is φ = 549306759680.

The previous prime is 1138618705649. The next prime is 1138618705673. The reversal of 1138618705652 is 2565078168311.

It can be written as a sum of positive squares in 4 ways, for example, as 14348685796 + 1124270019856 = 119786^2 + 1060316^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1138618705594 and 1138618705603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3142073 + ... + 3485664.

It is an arithmetic number, because the mean of its divisors is an integer number (85945192515).

Almost surely, 2^{1138618705652} is an apocalyptic number.

It is an amenable number.

1138618705652 is a deficient number, since it is larger than the sum of its proper divisors (924065914708).

1138618705652 is a wasteful number, since it uses less digits than its factorization.

1138618705652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6629251 (or 6629249 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 53.

The spelling of 1138618705652 in words is "one trillion, one hundred thirty-eight billion, six hundred eighteen million, seven hundred five thousand, six hundred fifty-two".