51403830416 has 20 divisors (see below), whose sum is σ = 100581012924. Its totient is φ = 25447440000.

The previous prime is 51403830407. The next prime is 51403830463. The reversal of 51403830416 is 61403830415.

It can be written as a sum of positive squares in 2 ways, for example, as 23746810000 + 27657020416 = 154100^2 + 166304^2 .

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15903035 + ... + 15906266.

Almost surely, 2^51403830416 is an apocalyptic number.

It is an amenable number.

51403830416 is a deficient number, since it is larger than the sum of its proper divisors (49177182508).

51403830416 is a wasteful number, since it uses less digits than its factorization.

51403830416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31809410 (or 31809404 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

Subtracting 51403830416 from its reverse (61403830415), we obtain a palindrome (9999999999).

The spelling of 51403830416 in words is "fifty-one billion, four hundred three million, eight hundred thirty thousand, four hundred sixteen".