51045184378 has 8 divisors (see below), whose sum is σ = 76575146868. Its totient is φ = 25520135424.

The previous prime is 51045184363. The next prime is 51045184387. The reversal of 51045184378 is 87348154015.

It can be written as a sum of positive squares in 2 ways, for example, as 42187927609 + 8857256769 = 205397^2 + 94113^2 .

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

It is a super-2 number, since 2×51045184378² (a number of 22 digits) contains 22 as substring.

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, 1202301 + ... + 1244032.

Almost surely, 2^51045184378 is an apocalyptic number.

51045184378 is a deficient number, since it is larger than the sum of its proper divisors (25529962490).

51045184378 is a wasteful number, since it uses less digits than its factorization.

51045184378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2456768.

The product of its (nonzero) digits is 537600, while the sum is 46.

The spelling of 51045184378 in words is "fifty-one billion, forty-five million, one hundred eighty-four thousand, three hundred seventy-eight".