771041745 has 12 divisors (see below), whose sum is σ = 1336472436. Its totient is φ = 411222240.

The previous prime is 771041743. The next prime is 771041759. The reversal of 771041745 is 547140177.

It can be written as a sum of positive squares in 2 ways, for example, as 551498256 + 219543489 = 23484^2 + 14817^2 .

It is not a de Polignac number, because 771041745 - 2¹ = 771041743 is a prime.

It is a Smith number, since the sum of its digits (36) 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 (771041741) 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, 8567086 + ... + 8567175.

It is an arithmetic number, because the mean of its divisors is an integer number (111372703).

Almost surely, 2^771041745 is an apocalyptic number.

It is an amenable number.

771041745 is a deficient number, since it is larger than the sum of its proper divisors (565430691).

771041745 is a wasteful number, since it uses less digits than its factorization.

771041745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17134272 (or 17134269 counting only the distinct ones).

The product of its (nonzero) digits is 27440, while the sum is 36.

The square root of 771041745 is about 27767.6384483809. The cubic root of 771041745 is about 916.9788044812.

It can be divided in two parts, 7710 and 41745, that added together give a triangular number (49455 = T₃₁₄).

The spelling of 771041745 in words is "seven hundred seventy-one million, forty-one thousand, seven hundred forty-five".