51045012016 has 20 divisors (see below), whose sum is σ = 98944309024. Its totient is φ = 25510996800.

The previous prime is 51045011917. The next prime is 51045012019. The reversal of 51045012016 is 61021054015.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (51045012019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 682680 + ... + 753751.

Almost surely, 2^51045012016 is an apocalyptic number.

It is an amenable number.

51045012016 is a deficient number, since it is larger than the sum of its proper divisors (47899297008).

51045012016 is a wasteful number, since it uses less digits than its factorization.

51045012016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1438660 (or 1438654 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

The spelling of 51045012016 in words is "fifty-one billion, forty-five million, twelve thousand, sixteen".