51034214209 has 4 divisors (see below), whose sum is σ = 55673688240. Its totient is φ = 46394740180.

The previous prime is 51034214207. The next prime is 51034214221. The reversal of 51034214209 is 90241243015.

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 51034214209 - 2¹ = 51034214207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51034214207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2319736999 + ... + 2319737020.

It is an arithmetic number, because the mean of its divisors is an integer number (13918422060).

Almost surely, 2^51034214209 is an apocalyptic number.

It is an amenable number.

51034214209 is a deficient number, since it is larger than the sum of its proper divisors (4639474031).

51034214209 is a wasteful number, since it uses less digits than its factorization.

51034214209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4639474030.

The product of its (nonzero) digits is 8640, while the sum is 31.

The spelling of 51034214209 in words is "fifty-one billion, thirty-four million, two hundred fourteen thousand, two hundred nine".