51046419472 has 20 divisors (see below), whose sum is σ = 99007570476. Its totient is φ = 25496078720.

The previous prime is 51046419451. The next prime is 51046419481. The reversal of 51046419472 is 27491464015.

It can be written as a sum of positive squares in 2 ways, for example, as 45027142416 + 6019277056 = 212196^2 + 77584^2 .

It is a super-2 number, since 2×51046419472² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1680163 + ... + 1710274.

Almost surely, 2^51046419472 is an apocalyptic number.

It is an amenable number.

51046419472 is a deficient number, since it is larger than the sum of its proper divisors (47961151004).

51046419472 is a wasteful number, since it uses less digits than its factorization.

51046419472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3391386 (or 3391380 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 51046419472 in words is "fifty-one billion, forty-six million, four hundred nineteen thousand, four hundred seventy-two".