51435422512 has 20 divisors (see below), whose sum is σ = 99705069360. Its totient is φ = 25705082048.

The previous prime is 51435422473. The next prime is 51435422527. The reversal of 51435422512 is 21522453415.

It is a happy number.

51435422512 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 755683 + ... + 820930.

It is an arithmetic number, because the mean of its divisors is an integer number (4985253468).

Almost surely, 2^51435422512 is an apocalyptic number.

It is an amenable number.

51435422512 is a deficient number, since it is larger than the sum of its proper divisors (48269646848).

51435422512 is a wasteful number, since it uses less digits than its factorization.

51435422512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1578660 (or 1578654 counting only the distinct ones).

The product of its digits is 48000, while the sum is 34.

Adding to 51435422512 its reverse (21522453415), we get a palindrome (72957875927).

The spelling of 51435422512 in words is "fifty-one billion, four hundred thirty-five million, four hundred twenty-two thousand, five hundred twelve".