51315140430 has 48 divisors (see below), whose sum is σ = 134218322784. Its totient is φ = 13602093120.

The previous prime is 51315140413. The next prime is 51315140491. The reversal of 51315140430 is 3404151315.

It is a happy number.

51315140430 is a `hidden beast` number, since 513 + 1 + 5 + 140 + 4 + 3 + 0 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 51315140394 and 51315140403.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 1692061 + ... + 1722120.

It is an arithmetic number, because the mean of its divisors is an integer number (2796215058).

Almost surely, 2^51315140430 is an apocalyptic number.

51315140430 is an abundant number, since it is smaller than the sum of its proper divisors (82903182354).

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

51315140430 is a wasteful number, since it uses less digits than its factorization.

51315140430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3414361 (or 3414358 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 51315140430 its reverse (3404151315), we get a palindrome (54719291745).

The spelling of 51315140430 in words is "fifty-one billion, three hundred fifteen million, one hundred forty thousand, four hundred thirty".