51793314949 has 8 divisors (see below), whose sum is σ = 52197095160. Its totient is φ = 51391079616.

The previous prime is 51793314929. The next prime is 51793314967. The reversal of 51793314949 is 94941339715.

It can be written as a sum of positive squares in 4 ways, for example, as 25724952100 + 26068362849 = 160390^2 + 161457^2 .

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 51793314949 - 2⁹ = 51793314437 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51793314949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51793314919) 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, 318862 + ... + 453055.

It is an arithmetic number, because the mean of its divisors is an integer number (6524636895).

Almost surely, 2^51793314949 is an apocalyptic number.

It is an amenable number.

51793314949 is a deficient number, since it is larger than the sum of its proper divisors (403780211).

51793314949 is a wasteful number, since it uses less digits than its factorization.

51793314949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772439.

The product of its digits is 3674160, while the sum is 55.

The spelling of 51793314949 in words is "fifty-one billion, seven hundred ninety-three million, three hundred fourteen thousand, nine hundred forty-nine".