770077018 has 4 divisors (see below), whose sum is σ = 1155115530. Its totient is φ = 385038508.

The previous prime is 770077013. The next prime is 770077019. The reversal of 770077018 is 810770077.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 389944009 + 380133009 = 19747^2 + 19497^2 .

It is a super-2 number, since 2×770077018² = 1186037227303544648, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (770077013) 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 as a sum of consecutive naturals, namely, 192519253 + ... + 192519256.

Almost surely, 2^770077018 is an apocalyptic number.

770077018 is a deficient number, since it is larger than the sum of its proper divisors (385038512).

770077018 is a wasteful number, since it uses less digits than its factorization.

770077018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385038511.

The product of its (nonzero) digits is 19208, while the sum is 37.

The square root of 770077018 is about 27750.2615843527. The cubic root of 770077018 is about 916.5962037444.

The spelling of 770077018 in words is "seven hundred seventy million, seventy-seven thousand, eighteen".