51065952854 has 32 divisors (see below), whose sum is σ = 91251705600. Its totient is φ = 20969413920.

The previous prime is 51065952841. The next prime is 51065952881. The reversal of 51065952854 is 45825956015.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 426884 + ... + 533255.

It is an arithmetic number, because the mean of its divisors is an integer number (2851615800).

Almost surely, 2^51065952854 is an apocalyptic number.

51065952854 is a deficient number, since it is larger than the sum of its proper divisors (40185752746).

51065952854 is a wasteful number, since it uses less digits than its factorization.

51065952854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 960308.

The product of its (nonzero) digits is 2160000, while the sum is 50.

The spelling of 51065952854 in words is "fifty-one billion, sixty-five million, nine hundred fifty-two thousand, eight hundred fifty-four".