51353443216 has 40 divisors (see below), whose sum is σ = 100252583424. Its totient is φ = 25482301440.

The previous prime is 51353443201. The next prime is 51353443217. The reversal of 51353443216 is 61234435315.

It is a super-2 number, since 2×51353443216² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51353443217) 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, 1697761 + ... + 1727743.

Almost surely, 2^51353443216 is an apocalyptic number.

It is an amenable number.

51353443216 is a deficient number, since it is larger than the sum of its proper divisors (48899140208).

51353443216 is a wasteful number, since it uses less digits than its factorization.

51353443216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30799 (or 30793 counting only the distinct ones).

The product of its digits is 129600, while the sum is 37.

The spelling of 51353443216 in words is "fifty-one billion, three hundred fifty-three million, four hundred forty-three thousand, two hundred sixteen".