77085533859167 has 4 divisors (see below), whose sum is σ = 77085582280536. Its totient is φ = 77085485437800.

The previous prime is 77085533859161. The next prime is 77085533859181. The reversal of 77085533859167 is 76195833558077.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77085533859167 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 77085533859094 and 77085533859103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77085533859161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21738584 + ... + 25034717.

It is an arithmetic number, because the mean of its divisors is an integer number (19271395570134).

Almost surely, 2^{77085533859167} is an apocalyptic number.

77085533859167 is a deficient number, since it is larger than the sum of its proper divisors (48421369).

77085533859167 is a wasteful number, since it uses less digits than its factorization.

77085533859167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48421368.

The product of its (nonzero) digits is 1333584000, while the sum is 74.

The spelling of 77085533859167 in words is "seventy-seven trillion, eighty-five billion, five hundred thirty-three million, eight hundred fifty-nine thousand, one hundred sixty-seven".