51417007818356 has 12 divisors (see below), whose sum is σ = 95272690957668. Its totient is φ = 24196238973312.

The previous prime is 51417007818331. The next prime is 51417007818383. The reversal of 51417007818356 is 65381870071415.

It can be written as a sum of positive squares in 2 ways, for example, as 26001636672400 + 25415371145956 = 5099180^2 + 5041366^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 378066233891 + ... + 378066234026.

It is an arithmetic number, because the mean of its divisors is an integer number (7939390913139).

Almost surely, 2^{51417007818356} is an apocalyptic number.

It is an amenable number.

51417007818356 is a deficient number, since it is larger than the sum of its proper divisors (43855683139312).

51417007818356 is a wasteful number, since it uses less digits than its factorization.

51417007818356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756132467938 (or 756132467936 counting only the distinct ones).

The product of its (nonzero) digits is 5644800, while the sum is 56.

The spelling of 51417007818356 in words is "fifty-one trillion, four hundred seventeen billion, seven million, eight hundred eighteen thousand, three hundred fifty-six".