51620063621363 has 8 divisors (see below), whose sum is σ = 52028146847232. Its totient is φ = 51212005802496.

The previous prime is 51620063621333. The next prime is 51620063621377. The reversal of 51620063621363 is 36312636002615.

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 51620063621363 - 2¹⁰ = 51620063620339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51620063621333) 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, 2261870 + ... + 10409427.

It is an arithmetic number, because the mean of its divisors is an integer number (6503518355904).

Almost surely, 2^{51620063621363} is an apocalyptic number.

51620063621363 is a deficient number, since it is larger than the sum of its proper divisors (408083225869).

51620063621363 is a wasteful number, since it uses less digits than its factorization.

51620063621363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12703501.

The product of its (nonzero) digits is 699840, while the sum is 44.

Adding to 51620063621363 its reverse (36312636002615), we get a palindrome (87932699623978).

The spelling of 51620063621363 in words is "fifty-one trillion, six hundred twenty billion, sixty-three million, six hundred twenty-one thousand, three hundred sixty-three".