84131642053777 has 4 divisors (see below), whose sum is σ = 87789539534400. Its totient is φ = 80473744573156.

The previous prime is 84131642053769. The next prime is 84131642053801. The reversal of 84131642053777 is 77735024613148.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 84131642053777 - 2³ = 84131642053769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84131642054777) 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, 1828948740277 + ... + 1828948740322.

It is an arithmetic number, because the mean of its divisors is an integer number (21947384883600).

Almost surely, 2^{84131642053777} is an apocalyptic number.

It is an amenable number.

84131642053777 is a deficient number, since it is larger than the sum of its proper divisors (3657897480623).

84131642053777 is a wasteful number, since it uses less digits than its factorization.

84131642053777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3657897480622.

The product of its (nonzero) digits is 23708160, while the sum is 58.

The spelling of 84131642053777 in words is "eighty-four trillion, one hundred thirty-one billion, six hundred forty-two million, fifty-three thousand, seven hundred seventy-seven".