1138738216725 has 36 divisors (see below), whose sum is σ = 2043661759776. Its totient is φ = 606119579040.

The previous prime is 1138738216667. The next prime is 1138738216747. The reversal of 1138738216725 is 5276128378311.

1138738216725 is a `hidden beast` number, since 1 + 1 + 3 + 87 + 382 + 167 + 25 = 666.

It is not a de Polignac number, because 1138738216725 - 2⁶ = 1138738216661 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4917699 + ... + 5144048.

It is an arithmetic number, because the mean of its divisors is an integer number (56768382216).

Almost surely, 2^{1138738216725} is an apocalyptic number.

1138738216725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1138738216725 is a deficient number, since it is larger than the sum of its proper divisors (904923543051).

1138738216725 is a wasteful number, since it uses less digits than its factorization.

1138738216725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10062266 (or 10062258 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 54.

The spelling of 1138738216725 in words is "one trillion, one hundred thirty-eight billion, seven hundred thirty-eight million, two hundred sixteen thousand, seven hundred twenty-five".