77200002122 has 8 divisors (see below), whose sum is σ = 115826352516. Its totient is φ = 38591217952.

The previous prime is 77200002107. The next prime is 77200002127. The reversal of 77200002122 is 22120000277.

It can be written as a sum of positive squares in 2 ways, for example, as 76302460441 + 897541681 = 276229^2 + 29959^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (77200002127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4380563 + ... + 4398150.

Almost surely, 2^77200002122 is an apocalyptic number.

77200002122 is a deficient number, since it is larger than the sum of its proper divisors (38626350394).

77200002122 is a wasteful number, since it uses less digits than its factorization.

77200002122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8783112.

The product of its (nonzero) digits is 784, while the sum is 23.

Adding to 77200002122 its reverse (22120000277), we get a palindrome (99320002399).

The spelling of 77200002122 in words is "seventy-seven billion, two hundred million, two thousand, one hundred twenty-two".