51572384447 has 16 divisors (see below), whose sum is σ = 52450944000. Its totient is φ = 50699978784.

The previous prime is 51572384371. The next prime is 51572384459. The reversal of 51572384447 is 74448327515.

It is a cyclic number.

It is not a de Polignac number, because 51572384447 - 2¹² = 51572380351 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51572384395 and 51572384404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51572384477) 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 15 ways as a sum of consecutive naturals, for example, 25119473 + ... + 25121525.

It is an arithmetic number, because the mean of its divisors is an integer number (3278184000).

Almost surely, 2^51572384447 is an apocalyptic number.

51572384447 is a deficient number, since it is larger than the sum of its proper divisors (878559553).

51572384447 is a wasteful number, since it uses less digits than its factorization.

51572384447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3350.

The product of its digits is 3763200, while the sum is 50.

The spelling of 51572384447 in words is "fifty-one billion, five hundred seventy-two million, three hundred eighty-four thousand, four hundred forty-seven".