51004745616 has 40 divisors (see below), whose sum is σ = 143740648224. Its totient is φ = 15455983360.

The previous prime is 51004745611. The next prime is 51004745633. The reversal of 51004745616 is 61654740015.

It is not an unprimeable number, because it can be changed into a prime (51004745611) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 48299421 + ... + 48300476.

Almost surely, 2^51004745616 is an apocalyptic number.

It is an amenable number.

51004745616 is an abundant number, since it is smaller than the sum of its proper divisors (92735902608).

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

51004745616 is a wasteful number, since it uses less digits than its factorization.

51004745616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96599919 (or 96599913 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 39.

The spelling of 51004745616 in words is "fifty-one billion, four million, seven hundred forty-five thousand, six hundred sixteen".