51788504793 has 4 divisors (see below), whose sum is σ = 69051339728. Its totient is φ = 34525669860.

The previous prime is 51788504777. The next prime is 51788504827. The reversal of 51788504793 is 39740588715.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 51788504793 - 2⁴ = 51788504777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51788504723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8631417463 + ... + 8631417468.

It is an arithmetic number, because the mean of its divisors is an integer number (17262834932).

Almost surely, 2^51788504793 is an apocalyptic number.

It is an amenable number.

51788504793 is a deficient number, since it is larger than the sum of its proper divisors (17262834935).

51788504793 is a wasteful number, since it uses less digits than its factorization.

51788504793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17262834934.

The product of its (nonzero) digits is 8467200, while the sum is 57.

The spelling of 51788504793 in words is "fifty-one billion, seven hundred eighty-eight million, five hundred four thousand, seven hundred ninety-three".