77018682 has 32 divisors (see below), whose sum is σ = 170376192. Its totient is φ = 23056704.

The previous prime is 77018681. The next prime is 77018701. The reversal of 77018682 is 28681077.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 77018682.

It is not an unprimeable number, because it can be changed into a prime (77018681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10458 + ... + 16229.

It is an arithmetic number, because the mean of its divisors is an integer number (5324256).

Almost surely, 2^77018682 is an apocalyptic number.

77018682 is an abundant number, since it is smaller than the sum of its proper divisors (93357510).

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

77018682 is a wasteful number, since it uses less digits than its factorization.

77018682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26742.

The product of its (nonzero) digits is 37632, while the sum is 39.

The square root of 77018682 is about 8776.0288285762. The cubic root of 77018682 is about 425.4664903190.

The spelling of 77018682 in words is "seventy-seven million, eighteen thousand, six hundred eighty-two".