84190946777 has 4 divisors (see below), whose sum is σ = 96218224896. Its totient is φ = 72163668660.

The previous prime is 84190946767. The next prime is 84190946803. The reversal of 84190946777 is 77764909148.

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 84190946777 - 2³⁰ = 83117204953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84190946767) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6013639049 + ... + 6013639062.

It is an arithmetic number, because the mean of its divisors is an integer number (24054556224).

Almost surely, 2^84190946777 is an apocalyptic number.

It is an amenable number.

84190946777 is a deficient number, since it is larger than the sum of its proper divisors (12027278119).

84190946777 is a wasteful number, since it uses less digits than its factorization.

84190946777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12027278118.

The product of its (nonzero) digits is 21337344, while the sum is 62.

The spelling of 84190946777 in words is "eighty-four billion, one hundred ninety million, nine hundred forty-six thousand, seven hundred seventy-seven".