51516328738 has 8 divisors (see below), whose sum is σ = 88313706432. Its totient is φ = 22078426596.

The previous prime is 51516328729. The next prime is 51516328753. The reversal of 51516328738 is 83782361515.

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

It is a junction number, because it is equal to n+sod(n) for n = 51516328691 and 51516328700.

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, 1839868870 + ... + 1839868897.

It is an arithmetic number, because the mean of its divisors is an integer number (11039213304).

Almost surely, 2^51516328738 is an apocalyptic number.

51516328738 is a deficient number, since it is larger than the sum of its proper divisors (36797377694).

51516328738 is a wasteful number, since it uses less digits than its factorization.

51516328738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3679737776.

The product of its digits is 1209600, while the sum is 49.

The spelling of 51516328738 in words is "fifty-one billion, five hundred sixteen million, three hundred twenty-eight thousand, seven hundred thirty-eight".