51368662845783 has 24 divisors (see below), whose sum is σ = 75940799826320. Its totient is φ = 33442287419520.

The previous prime is 51368662845769. The next prime is 51368662845809. The reversal of 51368662845783 is 38754826686315.

51368662845783 is a `hidden beast` number, since 5 + 1 + 36 + 8 + 6 + 62 + 8 + 457 + 83 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-51368662845783 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51368662845743) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12204088 + ... + 15864333.

Almost surely, 2^{51368662845783} is an apocalyptic number.

51368662845783 is a deficient number, since it is larger than the sum of its proper divisors (24572136980537).

51368662845783 is a wasteful number, since it uses less digits than its factorization.

51368662845783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28073199 (or 28073196 counting only the distinct ones).

The product of its digits is 1393459200, while the sum is 72.

The spelling of 51368662845783 in words is "fifty-one trillion, three hundred sixty-eight billion, six hundred sixty-two million, eight hundred forty-five thousand, seven hundred eighty-three".