51026121882143 has 4 divisors (see below), whose sum is σ = 51026164480080. Its totient is φ = 51026079284208.

The previous prime is 51026121882097. The next prime is 51026121882187. The reversal of 51026121882143 is 34128812162015.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 51026121882143 - 2²⁴ = 51026105104927 is a prime.

It is a super-2 number, since 2×51026121882143² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51026121882094 and 51026121882103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51026121782143) 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, 19448603 + ... + 21915756.

It is an arithmetic number, because the mean of its divisors is an integer number (12756541120020).

Almost surely, 2^{51026121882143} is an apocalyptic number.

51026121882143 is a deficient number, since it is larger than the sum of its proper divisors (42597937).

51026121882143 is a wasteful number, since it uses less digits than its factorization.

51026121882143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42597936.

The product of its (nonzero) digits is 184320, while the sum is 44.

The spelling of 51026121882143 in words is "fifty-one trillion, twenty-six billion, one hundred twenty-one million, eight hundred eighty-two thousand, one hundred forty-three".