51214647786482 has 4 divisors (see below), whose sum is σ = 76821971679726. Its totient is φ = 25607323893240.

The previous prime is 51214647786461. The next prime is 51214647786499. The reversal of 51214647786482 is 28468774641215.

It is a Cunningham number, because it is equal to 7156441²+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 51214647786481 + 1 = 7156441^2 + 1^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12803661946619 + ... + 12803661946622.

Almost surely, 2^{51214647786482} is an apocalyptic number.

51214647786482 is a deficient number, since it is larger than the sum of its proper divisors (25607323893244).

51214647786482 is a wasteful number, since it uses less digits than its factorization.

51214647786482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25607323893243.

The product of its digits is 144506880, while the sum is 65.

The spelling of 51214647786482 in words is "fifty-one trillion, two hundred fourteen billion, six hundred forty-seven million, seven hundred eighty-six thousand, four hundred eighty-two".