51122765842844 has 24 divisors (see below), whose sum is σ = 90351344623008. Its totient is φ = 25308099950400.

The previous prime is 51122765842739. The next prime is 51122765842871. The reversal of 51122765842844 is 44824856722115.

It is a super-2 number, since 2×51122765842844² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59634254 + ... + 60485450.

It is an arithmetic number, because the mean of its divisors is an integer number (3764639359292).

Almost surely, 2^{51122765842844} is an apocalyptic number.

It is an amenable number.

51122765842844 is a deficient number, since it is larger than the sum of its proper divisors (39228578780164).

51122765842844 is a wasteful number, since it uses less digits than its factorization.

51122765842844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 999965 (or 999963 counting only the distinct ones).

The product of its digits is 34406400, while the sum is 59.

The spelling of 51122765842844 in words is "fifty-one trillion, one hundred twenty-two billion, seven hundred sixty-five million, eight hundred forty-two thousand, eight hundred forty-four".