51963509723 has 8 divisors (see below), whose sum is σ = 52733221200. Its totient is φ = 51199125408.

The previous prime is 51963509711. The next prime is 51963509753. The reversal of 51963509723 is 32790536915.

It is a happy number.

51963509723 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 51963509723 - 2⁴ = 51963509707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51963509753) 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, 1312136 + ... + 1351157.

It is an arithmetic number, because the mean of its divisors is an integer number (6591652650).

Almost surely, 2^51963509723 is an apocalyptic number.

51963509723 is a deficient number, since it is larger than the sum of its proper divisors (769711477).

51963509723 is a wasteful number, since it uses less digits than its factorization.

51963509723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2663581.

The product of its (nonzero) digits is 1530900, while the sum is 50.

The spelling of 51963509723 in words is "fifty-one billion, nine hundred sixty-three million, five hundred nine thousand, seven hundred twenty-three".