51451433445 has 8 divisors (see below), whose sum is σ = 82322293536. Its totient is φ = 27440764496.

The previous prime is 51451433431. The next prime is 51451433479. The reversal of 51451433445 is 54433415415.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51451433445 - 2¹⁰ = 51451432421 is a prime.

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, 1715047767 + ... + 1715047796.

It is an arithmetic number, because the mean of its divisors is an integer number (10290286692).

Almost surely, 2^51451433445 is an apocalyptic number.

It is an amenable number.

51451433445 is a deficient number, since it is larger than the sum of its proper divisors (30870860091).

51451433445 is a wasteful number, since it uses less digits than its factorization.

51451433445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3430095571.

The product of its digits is 288000, while the sum is 39.

The spelling of 51451433445 in words is "fifty-one billion, four hundred fifty-one million, four hundred thirty-three thousand, four hundred forty-five".