51075080757749 has 8 divisors (see below), whose sum is σ = 51107343984000. Its totient is φ = 51042818418592.

The previous prime is 51075080757721. The next prime is 51075080757751. The reversal of 51075080757749 is 94775708057015.

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 51075080757749 - 2¹⁶ = 51075080692213 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 (51075080157749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144755057 + ... + 145107465.

It is an arithmetic number, because the mean of its divisors is an integer number (6388417998000).

Almost surely, 2^{51075080757749} is an apocalyptic number.

It is an amenable number.

51075080757749 is a deficient number, since it is larger than the sum of its proper divisors (32263226251).

51075080757749 is a wasteful number, since it uses less digits than its factorization.

51075080757749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443547.

The product of its (nonzero) digits is 86436000, while the sum is 65.

The spelling of 51075080757749 in words is "fifty-one trillion, seventy-five billion, eighty million, seven hundred fifty-seven thousand, seven hundred forty-nine".