51382636811005 has 8 divisors (see below), whose sum is σ = 64339997398272. Its totient is φ = 39318887298768.

The previous prime is 51382636810937. The next prime is 51382636811039. The reversal of 51382636811005 is 50011863628315.

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 51382636811005 - 2⁹ = 51382636810493 is a prime.

It is a super-2 number, since 2×51382636811005² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51382636811005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223402768629 + ... + 223402768858.

It is an arithmetic number, because the mean of its divisors is an integer number (8042499674784).

Almost surely, 2^{51382636811005} is an apocalyptic number.

It is an amenable number.

51382636811005 is a deficient number, since it is larger than the sum of its proper divisors (12957360587267).

51382636811005 is a wasteful number, since it uses less digits than its factorization.

51382636811005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446805537515.

The product of its (nonzero) digits is 1036800, while the sum is 49.

The spelling of 51382636811005 in words is "fifty-one trillion, three hundred eighty-two billion, six hundred thirty-six million, eight hundred eleven thousand, five".