51766405635357 has 80 divisors (see below), whose sum is σ = 89288571432192. Its totient is φ = 29276000812800.

The previous prime is 51766405635349. The next prime is 51766405635401. The reversal of 51766405635357 is 75353650466715.

51766405635357 is a `hidden beast` number, since 5 + 1 + 7 + 6 + 6 + 40 + 56 + 3 + 535 + 7 = 666.

51766405635357 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51766405635357 - 2³ = 51766405635349 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 51766405635294 and 51766405635303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51766405635557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 141438528 + ... + 141804054.

Almost surely, 2^{51766405635357} is an apocalyptic number.

It is an amenable number.

51766405635357 is a deficient number, since it is larger than the sum of its proper divisors (37522165796835).

51766405635357 is a wasteful number, since it uses less digits than its factorization.

51766405635357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368120 (or 368111 counting only the distinct ones).

The product of its (nonzero) digits is 238140000, while the sum is 63.

The spelling of 51766405635357 in words is "fifty-one trillion, seven hundred sixty-six billion, four hundred five million, six hundred thirty-five thousand, three hundred fifty-seven".