51201112084 has 24 divisors (see below), whose sum is σ = 93589429248. Its totient is φ = 24463459680.

The previous prime is 51201112021. The next prime is 51201112099. The reversal of 51201112084 is 48021110215.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178612 + ... + 366475.

It is an arithmetic number, because the mean of its divisors is an integer number (3899559552).

Almost surely, 2^51201112084 is an apocalyptic number.

It is an amenable number.

51201112084 is a deficient number, since it is larger than the sum of its proper divisors (42388317164).

51201112084 is a wasteful number, since it uses less digits than its factorization.

51201112084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546135 (or 546133 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 25.

Adding to 51201112084 its reverse (48021110215), we get a palindrome (99222222299).

The spelling of 51201112084 in words is "fifty-one billion, two hundred one million, one hundred twelve thousand, eighty-four".