776388012 has 12 divisors (see below), whose sum is σ = 1811572056. Its totient is φ = 258796000.

The previous prime is 776388001. The next prime is 776388017. The reversal of 776388012 is 210883677.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (776388017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32349489 + ... + 32349512.

It is an arithmetic number, because the mean of its divisors is an integer number (150964338).

Almost surely, 2^776388012 is an apocalyptic number.

It is an amenable number.

776388012 is an abundant number, since it is smaller than the sum of its proper divisors (1035184044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

776388012 is a wasteful number, since it uses less digits than its factorization.

776388012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64699008 (or 64699006 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 42.

The square root of 776388012 is about 27863.7400935337. The cubic root of 776388012 is about 919.0933143540.

The spelling of 776388012 in words is "seven hundred seventy-six million, three hundred eighty-eight thousand, twelve".