51113046432 has 96 divisors (see below), whose sum is σ = 153400794624. Its totient is φ = 14597856000.

The previous prime is 51113046421. The next prime is 51113046451. The reversal of 51113046432 is 23464031115.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×51113046432² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51113046432.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1821307 + ... + 1849157.

It is an arithmetic number, because the mean of its divisors is an integer number (1597924944).

Almost surely, 2^51113046432 is an apocalyptic number.

It is an amenable number.

51113046432 is an abundant number, since it is smaller than the sum of its proper divisors (102287748192).

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

51113046432 is a wasteful number, since it uses less digits than its factorization.

51113046432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30602 (or 30594 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 51113046432 its reverse (23464031115), we get a palindrome (74577077547).

The spelling of 51113046432 in words is "fifty-one billion, one hundred thirteen million, forty-six thousand, four hundred thirty-two".