776666712 has 16 divisors (see below), whose sum is σ = 1941666840. Its totient is φ = 258888896.

The previous prime is 776666711. The next prime is 776666729. The reversal of 776666712 is 217666677.

It is a super-2 number, since 2×776666712² = 1206422363057781888, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (776666711) 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, 16180533 + ... + 16180580.

Almost surely, 2^776666712 is an apocalyptic number.

It is an amenable number.

776666712 is an abundant number, since it is smaller than the sum of its proper divisors (1165000128).

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

776666712 is a wasteful number, since it uses less digits than its factorization.

776666712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32361122 (or 32361118 counting only the distinct ones).

The product of its digits is 889056, while the sum is 48.

The square root of 776666712 is about 27868.7407681079. The cubic root of 776666712 is about 919.2032768378.

The spelling of 776666712 in words is "seven hundred seventy-six million, six hundred sixty-six thousand, seven hundred twelve".