51465228664316 has 12 divisors (see below), whose sum is σ = 90584752187832. Its totient is φ = 25583870896368.

The previous prime is 51465228664309. The next prime is 51465228664373. The reversal of 51465228664316 is 61346682256415.

It is a super-2 number, since 2×51465228664316² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37185858170 + ... + 37185859553.

It is an arithmetic number, because the mean of its divisors is an integer number (7548729348986).

Almost surely, 2^{51465228664316} is an apocalyptic number.

It is an amenable number.

51465228664316 is a deficient number, since it is larger than the sum of its proper divisors (39119523523516).

51465228664316 is a wasteful number, since it uses less digits than its factorization.

51465228664316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74371717900 (or 74371717898 counting only the distinct ones).

The product of its digits is 49766400, while the sum is 59.

The spelling of 51465228664316 in words is "fifty-one trillion, four hundred sixty-five billion, two hundred twenty-eight million, six hundred sixty-four thousand, three hundred sixteen".