51738683912 has 8 divisors (see below), whose sum is σ = 97010032350. Its totient is φ = 25869341952.

The previous prime is 51738683869. The next prime is 51738683923. The reversal of 51738683912 is 21938683715.

It can be written as a sum of positive squares in only one way, i.e., 33912695716 + 17825988196 = 184154^2 + 133514^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3233667737 + ... + 3233667752.

Almost surely, 2^51738683912 is an apocalyptic number.

It is an amenable number.

51738683912 is a deficient number, since it is larger than the sum of its proper divisors (45271348438).

51738683912 is a wasteful number, since it uses less digits than its factorization.

51738683912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6467335495 (or 6467335491 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 53.

The spelling of 51738683912 in words is "fifty-one billion, seven hundred thirty-eight million, six hundred eighty-three thousand, nine hundred twelve".