51535221078147 has 8 divisors (see below), whose sum is σ = 68713782033600. Its totient is φ = 34356737087400.

The previous prime is 51535221078113. The next prime is 51535221078157. The reversal of 51535221078147 is 74187012253515.

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

It is not a de Polignac number, because 51535221078147 - 2¹⁴ = 51535221061763 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51535221078147.

It is not an unprimeable number, because it can be changed into a prime (51535221078157) 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, 17660229 + ... + 20370422.

It is an arithmetic number, because the mean of its divisors is an integer number (8589222754200).

Almost surely, 2^{51535221078147} is an apocalyptic number.

51535221078147 is a deficient number, since it is larger than the sum of its proper divisors (17178560955453).

51535221078147 is a wasteful number, since it uses less digits than its factorization.

51535221078147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38482353.

The product of its (nonzero) digits is 2352000, while the sum is 51.

The spelling of 51535221078147 in words is "fifty-one trillion, five hundred thirty-five billion, two hundred twenty-one million, seventy-eight thousand, one hundred forty-seven".