51121595948 has 24 divisors (see below), whose sum is σ = 89776938384. Its totient is φ = 25471136000.

The previous prime is 51121595927. The next prime is 51121595953. The reversal of 51121595948 is 84959512115.

It is a super-2 number, since 2×51121595948² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51121595896 and 51121595905.

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 7 ways as a sum of consecutive naturals, for example, 2378048 + ... + 2399448.

It is an arithmetic number, because the mean of its divisors is an integer number (3740705766).

Almost surely, 2^51121595948 is an apocalyptic number.

It is an amenable number.

51121595948 is a deficient number, since it is larger than the sum of its proper divisors (38655342436).

51121595948 is a wasteful number, since it uses less digits than its factorization.

51121595948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23473 (or 23471 counting only the distinct ones).

The product of its digits is 648000, while the sum is 50.

The spelling of 51121595948 in words is "fifty-one billion, one hundred twenty-one million, five hundred ninety-five thousand, nine hundred forty-eight".