51226061451413 has 4 divisors (see below), whose sum is σ = 51425384647980. Its totient is φ = 51026738254848.

The previous prime is 51226061451407. The next prime is 51226061451437. The reversal of 51226061451413 is 31415416062215.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 35597654506129 + 15628406945284 = 5966377^2 + 3953278^2 .

It is a cyclic number.

It is not a de Polignac number, because 51226061451413 - 2⁶ = 51226061451349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51226061454413) 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, 99661597898 + ... + 99661598411.

It is an arithmetic number, because the mean of its divisors is an integer number (12856346161995).

Almost surely, 2^{51226061451413} is an apocalyptic number.

It is an amenable number.

51226061451413 is a deficient number, since it is larger than the sum of its proper divisors (199323196567).

51226061451413 is a wasteful number, since it uses less digits than its factorization.

51226061451413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199323196566.

The product of its (nonzero) digits is 172800, while the sum is 41.

The spelling of 51226061451413 in words is "fifty-one trillion, two hundred twenty-six billion, sixty-one million, four hundred fifty-one thousand, four hundred thirteen".