51669578788 has 24 divisors (see below), whose sum is σ = 92203675200. Its totient is φ = 25330639200.

The previous prime is 51669578771. The next prime is 51669578833. The reversal of 51669578788 is 88787596615.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 579238 + ... + 662461.

It is an arithmetic number, because the mean of its divisors is an integer number (3841819800).

Almost surely, 2^51669578788 is an apocalyptic number.

It is an amenable number.

51669578788 is a deficient number, since it is larger than the sum of its proper divisors (40534096412).

51669578788 is a wasteful number, since it uses less digits than its factorization.

51669578788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1241907 (or 1241905 counting only the distinct ones).

The product of its digits is 203212800, while the sum is 70.

The spelling of 51669578788 in words is "fifty-one billion, six hundred sixty-nine million, five hundred seventy-eight thousand, seven hundred eighty-eight".