51134113124645 has 16 divisors (see below), whose sum is σ = 62910768236400. Its totient is φ = 39875758502400.

The previous prime is 51134113124587. The next prime is 51134113124683. The reversal of 51134113124645 is 54642131143115.

It can be written as a sum of positive squares in 8 ways, for example, as 6834412861441 + 44299700263204 = 2614271^2 + 6655802^2 .

It is not a de Polignac number, because 51134113124645 - 2⁶ = 51134113124581 is a prime.

It is a super-2 number, since 2×51134113124645² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105361070 + ... + 105845279.

It is an arithmetic number, because the mean of its divisors is an integer number (3931923014775).

Almost surely, 2^{51134113124645} is an apocalyptic number.

It is an amenable number.

51134113124645 is a deficient number, since it is larger than the sum of its proper divisors (11776655111755).

51134113124645 is a wasteful number, since it uses less digits than its factorization.

51134113124645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211207576.

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

The spelling of 51134113124645 in words is "fifty-one trillion, one hundred thirty-four billion, one hundred thirteen million, one hundred twenty-four thousand, six hundred forty-five".