51184650722 has 4 divisors (see below), whose sum is σ = 76776976086. Its totient is φ = 25592325360.

The previous prime is 51184650703. The next prime is 51184650733. The reversal of 51184650722 is 22705648115.

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., 46539001441 + 4645649281 = 215729^2 + 68159^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 51184650722.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12796162679 + ... + 12796162682.

Almost surely, 2^51184650722 is an apocalyptic number.

51184650722 is a deficient number, since it is larger than the sum of its proper divisors (25592325364).

51184650722 is a wasteful number, since it uses less digits than its factorization.

51184650722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25592325363.

The product of its (nonzero) digits is 134400, while the sum is 41.

The spelling of 51184650722 in words is "fifty-one billion, one hundred eighty-four million, six hundred fifty thousand, seven hundred twenty-two".