51646214576 has 20 divisors (see below), whose sum is σ = 109161317544. Its totient is φ = 23475552000.

The previous prime is 51646214573. The next prime is 51646214623. The reversal of 51646214576 is 67541264615.

It is a self number, because there is not a number n which added to its sum of digits gives 51646214576.

It is not an unprimeable number, because it can be changed into a prime (51646214573) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146722025 + ... + 146722376.

Almost surely, 2^51646214576 is an apocalyptic number.

It is an amenable number.

51646214576 is an abundant number, since it is smaller than the sum of its proper divisors (57515102968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51646214576 is a wasteful number, since it uses less digits than its factorization.

51646214576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293444420 (or 293444414 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 47.

The spelling of 51646214576 in words is "fifty-one billion, six hundred forty-six million, two hundred fourteen thousand, five hundred seventy-six".