51348144754513 has 4 divisors (see below), whose sum is σ = 51365198276208. Its totient is φ = 51331091232820.

The previous prime is 51348144754499. The next prime is 51348144754547. The reversal of 51348144754513 is 31545744184315.

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 51348144754513 - 2¹³ = 51348144746321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51348144754583) 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, 8526756331 + ... + 8526762352.

It is an arithmetic number, because the mean of its divisors is an integer number (12841299569052).

Almost surely, 2^{51348144754513} is an apocalyptic number.

It is an amenable number.

51348144754513 is a deficient number, since it is larger than the sum of its proper divisors (17053521695).

51348144754513 is a wasteful number, since it uses less digits than its factorization.

51348144754513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17053521694.

The product of its digits is 16128000, while the sum is 55.

The spelling of 51348144754513 in words is "fifty-one trillion, three hundred forty-eight billion, one hundred forty-four million, seven hundred fifty-four thousand, five hundred thirteen".