51012305211205 has 16 divisors (see below), whose sum is σ = 66065978039040. Its totient is φ = 37589263322688.

The previous prime is 51012305211199. The next prime is 51012305211277. The reversal of 51012305211205 is 50211250321015.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 51012305211205 - 2¹⁷ = 51012305080133 is a prime.

It is a super-2 number, since 2×51012305211205² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 847491175 + ... + 847551364.

It is an arithmetic number, because the mean of its divisors is an integer number (4129123627440).

Almost surely, 2^{51012305211205} is an apocalyptic number.

It is an amenable number.

51012305211205 is a deficient number, since it is larger than the sum of its proper divisors (15053672827835).

51012305211205 is a wasteful number, since it uses less digits than its factorization.

51012305211205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1695043020.

The product of its (nonzero) digits is 3000, while the sum is 28.

The spelling of 51012305211205 in words is "fifty-one trillion, twelve billion, three hundred five million, two hundred eleven thousand, two hundred five".