51641696198 has 8 divisors (see below), whose sum is σ = 77493951192. Its totient is φ = 25810379136.

The previous prime is 51641696137. The next prime is 51641696287. The reversal of 51641696198 is 89169614615.

51641696198 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5228315 + ... + 5238182.

It is an arithmetic number, because the mean of its divisors is an integer number (9686743899).

Almost surely, 2^51641696198 is an apocalyptic number.

51641696198 is a deficient number, since it is larger than the sum of its proper divisors (25852254994).

51641696198 is a wasteful number, since it uses less digits than its factorization.

51641696198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10468966.

The product of its digits is 2799360, while the sum is 56.

The spelling of 51641696198 in words is "fifty-one billion, six hundred forty-one million, six hundred ninety-six thousand, one hundred ninety-eight".