51612450016 has 12 divisors (see below), whose sum is σ = 101612011032. Its totient is φ = 25806224992.

The previous prime is 51612450011. The next prime is 51612450017. The reversal of 51612450016 is 61005421615.

It is a self number, because there is not a number n which added to its sum of digits gives 51612450016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51612450011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 806444500 + ... + 806444563.

It is an arithmetic number, because the mean of its divisors is an integer number (8467667586).

Almost surely, 2^51612450016 is an apocalyptic number.

It is an amenable number.

51612450016 is a deficient number, since it is larger than the sum of its proper divisors (49999561016).

51612450016 is a wasteful number, since it uses less digits than its factorization.

51612450016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1612889073 (or 1612889065 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 31.

The spelling of 51612450016 in words is "fifty-one billion, six hundred twelve million, four hundred fifty thousand, sixteen".