84982178353 has 2 divisors, whose sum is σ = 84982178354. Its totient is φ = 84982178352.

The previous prime is 84982178297. The next prime is 84982178357. The reversal of 84982178353 is 35387128948.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84700207089 + 281971264 = 291033^2 + 16792^2 .

It is a cyclic number.

It is not a de Polignac number, because 84982178353 - 2²¹ = 84980081201 is a prime.

It is a super-2 number, since 2×84982178353² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (84982178357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42491089176 + 42491089177.

It is an arithmetic number, because the mean of its divisors is an integer number (42491089177).

Almost surely, 2^84982178353 is an apocalyptic number.

It is an amenable number.

84982178353 is a deficient number, since it is larger than the sum of its proper divisors (1).

84982178353 is an equidigital number, since it uses as much as digits as its factorization.

84982178353 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11612160, while the sum is 58.

The spelling of 84982178353 in words is "eighty-four billion, nine hundred eighty-two million, one hundred seventy-eight thousand, three hundred fifty-three".