51712669654 has 16 divisors (see below), whose sum is σ = 80655705216. Its totient is φ = 24839611200.

The previous prime is 51712669651. The next prime is 51712669669. The reversal of 51712669654 is 45696621715.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51712669651) 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 7 ways as a sum of consecutive naturals, for example, 3035577 + ... + 3052564.

It is an arithmetic number, because the mean of its divisors is an integer number (5040981576).

Almost surely, 2^51712669654 is an apocalyptic number.

51712669654 is a deficient number, since it is larger than the sum of its proper divisors (28943035562).

51712669654 is a wasteful number, since it uses less digits than its factorization.

51712669654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6088311.

The product of its digits is 2721600, while the sum is 52.

The spelling of 51712669654 in words is "fifty-one billion, seven hundred twelve million, six hundred sixty-nine thousand, six hundred fifty-four".