51184704379697 has 4 divisors (see below), whose sum is σ = 58496805005376. Its totient is φ = 43872603754020.

The previous prime is 51184704379637. The next prime is 51184704379727. The reversal of 51184704379697 is 79697340748115.

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 51184704379697 - 2¹² = 51184704375601 is a prime.

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 51184704379697.

It is not an unprimeable number, because it can be changed into a prime (51184704379637) 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, 3656050312829 + ... + 3656050312842.

It is an arithmetic number, because the mean of its divisors is an integer number (14624201251344).

Almost surely, 2^{51184704379697} is an apocalyptic number.

It is an amenable number.

51184704379697 is a deficient number, since it is larger than the sum of its proper divisors (7312100625679).

51184704379697 is an equidigital number, since it uses as much as digits as its factorization.

51184704379697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7312100625678.

The product of its (nonzero) digits is 320060160, while the sum is 71.

The spelling of 51184704379697 in words is "fifty-one trillion, one hundred eighty-four billion, seven hundred four million, three hundred seventy-nine thousand, six hundred ninety-seven".