51438828850246 has 8 divisors (see below), whose sum is σ = 79818872353920. Its totient is φ = 24832538065608.

The previous prime is 51438828850169. The next prime is 51438828850259. The reversal of 51438828850246 is 64205882883415.

It is a happy number.

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

It is a super-2 number, since 2×51438828850246² (a number of 28 digits) contains 22 as substring.

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, 443438179686 + ... + 443438179801.

It is an arithmetic number, because the mean of its divisors is an integer number (9977359044240).

Almost surely, 2^{51438828850246} is an apocalyptic number.

51438828850246 is a deficient number, since it is larger than the sum of its proper divisors (28380043503674).

51438828850246 is a wasteful number, since it uses less digits than its factorization.

51438828850246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 886876359518.

The product of its (nonzero) digits is 117964800, while the sum is 64.

The spelling of 51438828850246 in words is "fifty-one trillion, four hundred thirty-eight billion, eight hundred twenty-eight million, eight hundred fifty thousand, two hundred forty-six".