51243563382 has 16 divisors (see below), whose sum is σ = 111804138432. Its totient is φ = 15528352520.

The previous prime is 51243563339. The next prime is 51243563419. The reversal of 51243563382 is 28336534215.

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, 388208748 + ... + 388208879.

It is an arithmetic number, because the mean of its divisors is an integer number (6987758652).

Almost surely, 2^51243563382 is an apocalyptic number.

51243563382 is an abundant number, since it is smaller than the sum of its proper divisors (60560575050).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51243563382 is a wasteful number, since it uses less digits than its factorization.

51243563382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776417643.

The product of its digits is 518400, while the sum is 42.

The spelling of 51243563382 in words is "fifty-one billion, two hundred forty-three million, five hundred sixty-three thousand, three hundred eighty-two".