51449268770 has 8 divisors (see below), whose sum is σ = 92608683804. Its totient is φ = 20579707504.

The previous prime is 51449268743. The next prime is 51449268781. The reversal of 51449268770 is 7786294415.

It can be written as a sum of positive squares in 2 ways, for example, as 50512113001 + 937155769 = 224749^2 + 30613^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2572463429 + ... + 2572463448.

Almost surely, 2^51449268770 is an apocalyptic number.

51449268770 is a deficient number, since it is larger than the sum of its proper divisors (41159415034).

51449268770 is a wasteful number, since it uses less digits than its factorization.

51449268770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5144926884.

The product of its (nonzero) digits is 3386880, while the sum is 53.

The spelling of 51449268770 in words is "fifty-one billion, four hundred forty-nine million, two hundred sixty-eight thousand, seven hundred seventy".