51386805356 has 12 divisors (see below), whose sum is σ = 92120248920. Its totient is φ = 25066734240.

The previous prime is 51386805313. The next prime is 51386805383. The reversal of 51386805356 is 65350868315.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156666926 + ... + 156667253.

It is an arithmetic number, because the mean of its divisors is an integer number (7676687410).

Almost surely, 2^51386805356 is an apocalyptic number.

It is an amenable number.

51386805356 is a deficient number, since it is larger than the sum of its proper divisors (40733443564).

51386805356 is a wasteful number, since it uses less digits than its factorization.

51386805356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313334224 (or 313334222 counting only the distinct ones).

The product of its (nonzero) digits is 2592000, while the sum is 50.

The spelling of 51386805356 in words is "fifty-one billion, three hundred eighty-six million, eight hundred five thousand, three hundred fifty-six".