51374347352017 has 4 divisors (see below), whose sum is σ = 51423793308160. Its totient is φ = 51324901395876.

The previous prime is 51374347351981. The next prime is 51374347352021. The reversal of 51374347352017 is 71025374347315.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51374347352017 - 2¹⁵ = 51374347319249 is a prime.

It is a super-2 number, since 2×51374347352017² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51374347332017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24722976513 + ... + 24722978590.

It is an arithmetic number, because the mean of its divisors is an integer number (12855948327040).

Almost surely, 2^{51374347352017} is an apocalyptic number.

It is an amenable number.

51374347352017 is a deficient number, since it is larger than the sum of its proper divisors (49445956143).

51374347352017 is a wasteful number, since it uses less digits than its factorization.

51374347352017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49445956142.

The product of its (nonzero) digits is 7408800, while the sum is 52.

The spelling of 51374347352017 in words is "fifty-one trillion, three hundred seventy-four billion, three hundred forty-seven million, three hundred fifty-two thousand, seventeen".