51939736386047 has 8 divisors (see below), whose sum is σ = 54198212339040. Its totient is φ = 49681279311840.

The previous prime is 51939736386011. The next prime is 51939736386053. The reversal of 51939736386047 is 74068363793915.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51939736386047 - 2⁶ = 51939736385983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51939736386247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1052597 + ... + 10246337.

It is an arithmetic number, because the mean of its divisors is an integer number (6774776542380).

Almost surely, 2^{51939736386047} is an apocalyptic number.

51939736386047 is a deficient number, since it is larger than the sum of its proper divisors (2258475952993).

51939736386047 is a wasteful number, since it uses less digits than its factorization.

51939736386047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9439393.

The product of its (nonzero) digits is 617258880, while the sum is 71.

The spelling of 51939736386047 in words is "fifty-one trillion, nine hundred thirty-nine billion, seven hundred thirty-six million, three hundred eighty-six thousand, forty-seven".