1138738756925 has 48 divisors (see below), whose sum is σ = 1760609647104. Its totient is φ = 709803000000.

The previous prime is 1138738756891. The next prime is 1138738756933. The reversal of 1138738756925 is 5296578378311.

It is not a de Polignac number, because 1138738756925 - 2³⁰ = 1137665015101 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 36657650 + ... + 36688700.

It is an arithmetic number, because the mean of its divisors is an integer number (36679367648).

Almost surely, 2^{1138738756925} is an apocalyptic number.

It is an amenable number.

1138738756925 is a deficient number, since it is larger than the sum of its proper divisors (621870890179).

1138738756925 is a wasteful number, since it uses less digits than its factorization.

1138738756925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50130 (or 50125 counting only the distinct ones).

The product of its digits is 76204800, while the sum is 65.

The spelling of 1138738756925 in words is "one trillion, one hundred thirty-eight billion, seven hundred thirty-eight million, seven hundred fifty-six thousand, nine hundred twenty-five".