84612327077 has 4 divisors (see below), whose sum is σ = 84644174796. Its totient is φ = 84580479360.

The previous prime is 84612327073. The next prime is 84612327089. The reversal of 84612327077 is 77072321648.

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

It can be written as a sum of positive squares in 2 ways, for example, as 72899460001 + 11712867076 = 269999^2 + 108226^2 .

It is a cyclic number.

It is not a de Polignac number, because 84612327077 - 2² = 84612327073 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84612327073) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 15919874 + ... + 15925187.

It is an arithmetic number, because the mean of its divisors is an integer number (21161043699).

Almost surely, 2^84612327077 is an apocalyptic number.

It is an amenable number.

84612327077 is a deficient number, since it is larger than the sum of its proper divisors (31847719).

84612327077 is a wasteful number, since it uses less digits than its factorization.

84612327077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31847718.

The product of its (nonzero) digits is 790272, while the sum is 47.

The spelling of 84612327077 in words is "eighty-four billion, six hundred twelve million, three hundred twenty-seven thousand, seventy-seven".