51016444312 has 16 divisors (see below), whose sum is σ = 98741505600. Its totient is φ = 24685376160.

The previous prime is 51016444309. The next prime is 51016444319. The reversal of 51016444312 is 21344461015.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51016444319) 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, 102855487 + ... + 102855982.

It is an arithmetic number, because the mean of its divisors is an integer number (6171344100).

Almost surely, 2^51016444312 is an apocalyptic number.

It is an amenable number.

51016444312 is a deficient number, since it is larger than the sum of its proper divisors (47725061288).

51016444312 is a wasteful number, since it uses less digits than its factorization.

51016444312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205711506 (or 205711502 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The spelling of 51016444312 in words is "fifty-one billion, sixteen million, four hundred forty-four thousand, three hundred twelve".