84941784377 has 4 divisors (see below), whose sum is σ = 84944011236. Its totient is φ = 84939557520.

The previous prime is 84941784373. The next prime is 84941784413. The reversal of 84941784377 is 77348714948.

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 60671571856 + 24270212521 = 246316^2 + 155789^2 .

It is a cyclic number.

It is not a de Polignac number, because 84941784377 - 2² = 84941784373 is a prime.

It is a super-2 number, since 2×84941784377² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84941784373) 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, 1055198 + ... + 1132839.

It is an arithmetic number, because the mean of its divisors is an integer number (21236002809).

Almost surely, 2^84941784377 is an apocalyptic number.

It is an amenable number.

84941784377 is a deficient number, since it is larger than the sum of its proper divisors (2226859).

84941784377 is a wasteful number, since it uses less digits than its factorization.

84941784377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2226858.

The product of its digits is 37933056, while the sum is 62.

The spelling of 84941784377 in words is "eighty-four billion, nine hundred forty-one million, seven hundred eighty-four thousand, three hundred seventy-seven".