780200000002 has 4 divisors (see below), whose sum is σ = 1170300000006. Its totient is φ = 390100000000.

The previous prime is 780199999981. The next prime is 780200000011. The reversal of 780200000002 is 200000002087.

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., 719645125761 + 60554874241 = 848319^2 + 246079^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 195049999999 + ... + 195050000002.

Almost surely, 2^780200000002 is an apocalyptic number.

780200000002 is a deficient number, since it is larger than the sum of its proper divisors (390100000004).

780200000002 is a wasteful number, since it uses less digits than its factorization.

780200000002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390100000003.

The product of its (nonzero) digits is 224, while the sum is 19.

Adding to 780200000002 its reverse (200000002087), we get a palindrome (980200002089).

The spelling of 780200000002 in words is "seven hundred eighty billion, two hundred million, two", and thus it is an aban number.