51303430316 has 24 divisors (see below), whose sum is σ = 92962571520. Its totient is φ = 24744327552.

The previous prime is 51303430313. The next prime is 51303430337. The reversal of 51303430316 is 61303430315.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (51303430313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77345 + ... + 329528.

It is an arithmetic number, because the mean of its divisors is an integer number (3873440480).

Almost surely, 2^51303430316 is an apocalyptic number.

It is an amenable number.

51303430316 is a deficient number, since it is larger than the sum of its proper divisors (41659141204).

51303430316 is a wasteful number, since it uses less digits than its factorization.

51303430316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407993 (or 407991 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 29.

Subtracting 51303430316 from its reverse (61303430315), we obtain a palindrome (9999999999).

The spelling of 51303430316 in words is "fifty-one billion, three hundred three million, four hundred thirty thousand, three hundred sixteen".