51383606390 has 16 divisors (see below), whose sum is σ = 95474056320. Its totient is φ = 19890428160.

The previous prime is 51383606381. The next prime is 51383606401. The reversal of 51383606390 is 9360638315.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82876475 + ... + 82877094.

It is an arithmetic number, because the mean of its divisors is an integer number (5967128520).

Almost surely, 2^51383606390 is an apocalyptic number.

51383606390 is a deficient number, since it is larger than the sum of its proper divisors (44090449930).

51383606390 is a wasteful number, since it uses less digits than its factorization.

51383606390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165753607.

The product of its (nonzero) digits is 349920, while the sum is 44.

The spelling of 51383606390 in words is "fifty-one billion, three hundred eighty-three million, six hundred six thousand, three hundred ninety".