51638276072 has 16 divisors (see below), whose sum is σ = 96824548800. Its totient is φ = 25818396400.

The previous prime is 51638275993. The next prime is 51638276087. The reversal of 51638276072 is 27067283615.

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 3 ways as a sum of consecutive naturals, for example, 302129 + ... + 441087.

It is an arithmetic number, because the mean of its divisors is an integer number (6051534300).

Almost surely, 2^51638276072 is an apocalyptic number.

It is an amenable number.

51638276072 is a deficient number, since it is larger than the sum of its proper divisors (45186272728).

51638276072 is a wasteful number, since it uses less digits than its factorization.

51638276072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185416 (or 185412 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 47.

The spelling of 51638276072 in words is "fifty-one billion, six hundred thirty-eight million, two hundred seventy-six thousand, seventy-two".