77018013 has 8 divisors (see below), whose sum is σ = 114100800. Its totient is φ = 51345324.

The previous prime is 77017999. The next prime is 77018021. The reversal of 77018013 is 31081077.

It is not a de Polignac number, because 77018013 - 2⁶ = 77017949 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 2852519 = 77018013 / (7 + 7 + 0 + 1 + 8 + 0 + 1 + 3).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77018023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1426233 + ... + 1426286.

It is an arithmetic number, because the mean of its divisors is an integer number (14262600).

Almost surely, 2^77018013 is an apocalyptic number.

It is an amenable number.

77018013 is a deficient number, since it is larger than the sum of its proper divisors (37082787).

77018013 is a wasteful number, since it uses less digits than its factorization.

77018013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2852528 (or 2852522 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 27.

The square root of 77018013 is about 8775.9907133041. The cubic root of 77018013 is about 425.4652584192.

The spelling of 77018013 in words is "seventy-seven million, eighteen thousand, thirteen".