51704754705 has 40 divisors (see below), whose sum is σ = 92838696192. Its totient is φ = 27530308512.

The previous prime is 51704754691. The next prime is 51704754707. The reversal of 51704754705 is 50745740715.

51704754705 is a `hidden beast` number, since 5 + 170 + 4 + 7 + 5 + 470 + 5 = 666.

It is not a de Polignac number, because 51704754705 - 2¹⁸ = 51704492561 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (51704754707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 140674 + ... + 350996.

Almost surely, 2^51704754705 is an apocalyptic number.

It is an amenable number.

51704754705 is a deficient number, since it is larger than the sum of its proper divisors (41133941487).

51704754705 is a wasteful number, since it uses less digits than its factorization.

51704754705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210947 (or 210938 counting only the distinct ones).

The product of its (nonzero) digits is 686000, while the sum is 45.

The spelling of 51704754705 in words is "fifty-one billion, seven hundred four million, seven hundred fifty-four thousand, seven hundred five".