77052230250812 has 24 divisors (see below), whose sum is σ = 135109249990176. Its totient is φ = 38449663285248.

The previous prime is 77052230250773. The next prime is 77052230250839. The reversal of 77052230250812 is 21805203225077.

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 5423333 + ... + 13546844.

It is an arithmetic number, because the mean of its divisors is an integer number (5629552082924).

Almost surely, 2^{77052230250812} is an apocalyptic number.

It is an amenable number.

77052230250812 is a deficient number, since it is larger than the sum of its proper divisors (58057019739364).

77052230250812 is a wasteful number, since it uses less digits than its factorization.

77052230250812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18972197 (or 18972195 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 44.

Adding to 77052230250812 its reverse (21805203225077), we get a palindrome (98857433475889).

The spelling of 77052230250812 in words is "seventy-seven trillion, fifty-two billion, two hundred thirty million, two hundred fifty thousand, eight hundred twelve".