51516072835 has 8 divisors (see below), whose sum is σ = 61997443056. Its totient is φ = 41094087840.

The previous prime is 51516072833. The next prime is 51516072857. The reversal of 51516072835 is 53827061515.

It is a happy number.

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

It is not a de Polignac number, because 51516072835 - 2¹ = 51516072833 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51516072791 and 51516072800.

It is not an unprimeable number, because it can be changed into a prime (51516072833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14844396 + ... + 14847865.

It is an arithmetic number, because the mean of its divisors is an integer number (7749680382).

Almost surely, 2^51516072835 is an apocalyptic number.

51516072835 is a deficient number, since it is larger than the sum of its proper divisors (10481370221).

51516072835 is a wasteful number, since it uses less digits than its factorization.

51516072835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29692613.

The product of its (nonzero) digits is 252000, while the sum is 43.

The spelling of 51516072835 in words is "fifty-one billion, five hundred sixteen million, seventy-two thousand, eight hundred thirty-five".