51135434204 has 24 divisors (see below), whose sum is σ = 93851781408. Its totient is φ = 24331926080.

The previous prime is 51135434201. The next prime is 51135434221. The reversal of 51135434204 is 40243453115.

It is a super-2 number, since 2×51135434204² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51135434201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1392587 + ... + 1428834.

It is an arithmetic number, because the mean of its divisors is an integer number (3910490892).

Almost surely, 2^51135434204 is an apocalyptic number.

It is an amenable number.

51135434204 is a deficient number, since it is larger than the sum of its proper divisors (42716347204).

51135434204 is a wasteful number, since it uses less digits than its factorization.

51135434204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2821645 (or 2821643 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 51135434204 its reverse (40243453115), we get a palindrome (91378887319).

The spelling of 51135434204 in words is "fifty-one billion, one hundred thirty-five million, four hundred thirty-four thousand, two hundred four".