51776460655 has 8 divisors (see below), whose sum is σ = 64274227200. Its totient is φ = 39992852256.

The previous prime is 51776460653. The next prime is 51776460667. The reversal of 51776460655 is 55606467715.

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 51776460655 - 2¹ = 51776460653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51776460653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178539375 + ... + 178539664.

It is an arithmetic number, because the mean of its divisors is an integer number (8034278400).

Almost surely, 2^51776460655 is an apocalyptic number.

51776460655 is a deficient number, since it is larger than the sum of its proper divisors (12497766545).

51776460655 is a wasteful number, since it uses less digits than its factorization.

51776460655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357079073.

The product of its (nonzero) digits is 5292000, while the sum is 52.

The spelling of 51776460655 in words is "fifty-one billion, seven hundred seventy-six million, four hundred sixty thousand, six hundred fifty-five".