77185867082 has 4 divisors (see below), whose sum is σ = 115778800626. Its totient is φ = 38592933540.

The previous prime is 77185867069. The next prime is 77185867103. The reversal of 77185867082 is 28076858177.

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., 77078972161 + 106894921 = 277631^2 + 10339^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19296466769 + ... + 19296466772.

Almost surely, 2^77185867082 is an apocalyptic number.

77185867082 is a deficient number, since it is larger than the sum of its proper divisors (38592933544).

77185867082 is a wasteful number, since it uses less digits than its factorization.

77185867082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38592933543.

The product of its (nonzero) digits is 10536960, while the sum is 59.

The spelling of 77185867082 in words is "seventy-seven billion, one hundred eighty-five million, eight hundred sixty-seven thousand, eighty-two".