51122765842752 has 56 divisors (see below), whose sum is σ = 138561398906112. Its totient is φ = 16625289702400.

The previous prime is 51122765842739. The next prime is 51122765842871. The reversal of 51122765842752 is 25724856722115.

It is a super-2 number, since 2×51122765842752² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51122765842692 and 51122765842701.

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, 3247119024 + ... + 3247134767.

It is an arithmetic number, because the mean of its divisors is an integer number (2474310694752).

Almost surely, 2^{51122765842752} is an apocalyptic number.

It is an amenable number.

51122765842752 is an abundant number, since it is smaller than the sum of its proper divisors (87438633063360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51122765842752 is a wasteful number, since it uses less digits than its factorization.

51122765842752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6494253847 (or 6494253837 counting only the distinct ones).

The product of its digits is 18816000, while the sum is 57.

The spelling of 51122765842752 in words is "fifty-one trillion, one hundred twenty-two billion, seven hundred sixty-five million, eight hundred forty-two thousand, seven hundred fifty-two".