138178674925 has 36 divisors (see below), whose sum is σ = 179235687904. Its totient is φ = 105665551200.

The previous prime is 138178674913. The next prime is 138178674937. The reversal of 138178674925 is 529476871831.

It is an interprime number because it is at equal distance from previous prime (138178674913) and next prime (138178674937).

It is not a de Polignac number, because 138178674925 - 2¹⁹ = 138178150637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 28180024 + ... + 28184926.

Almost surely, 2^138178674925 is an apocalyptic number.

It is an amenable number.

138178674925 is a deficient number, since it is larger than the sum of its proper divisors (41057012979).

138178674925 is a wasteful number, since it uses less digits than its factorization.

138178674925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7090 (or 7062 counting only the distinct ones).

The product of its digits is 20321280, while the sum is 61.

The spelling of 138178674925 in words is "one hundred thirty-eight billion, one hundred seventy-eight million, six hundred seventy-four thousand, nine hundred twenty-five".