775842012 has 36 divisors (see below), whose sum is σ = 2139444216. Its totient is φ = 235103520.

The previous prime is 775841993. The next prime is 775842013. The reversal of 775842012 is 210248577.

775842012 is a `hidden beast` number, since 77 + 584 + 2 + 0 + 1 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (775842013) 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 11 ways as a sum of consecutive naturals, for example, 979203 + ... + 979994.

It is an arithmetic number, because the mean of its divisors is an integer number (59429006).

Almost surely, 2^775842012 is an apocalyptic number.

It is an amenable number.

775842012 is an abundant number, since it is smaller than the sum of its proper divisors (1363602204).

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

775842012 is a wasteful number, since it uses less digits than its factorization.

775842012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1959218 (or 1959213 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 36.

The square root of 775842012 is about 27853.9406906815. The cubic root of 775842012 is about 918.8778110124.

It can be divided in two parts, 7758 and 42012, that added together give a triangular number (49770 = T₃₁₅).

The spelling of 775842012 in words is "seven hundred seventy-five million, eight hundred forty-two thousand, twelve".