84953868841 has 2 divisors, whose sum is σ = 84953868842. Its totient is φ = 84953868840.

The previous prime is 84953868823. The next prime is 84953868847. The reversal of 84953868841 is 14886835948.

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., 72918901225 + 12034967616 = 270035^2 + 109704^2 .

It is a cyclic number.

It is not a de Polignac number, because 84953868841 - 2²¹ = 84951771689 is a prime.

It is not a weakly prime, because it can be changed into another prime (84953868847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42476934420 + 42476934421.

It is an arithmetic number, because the mean of its divisors is an integer number (42476934421).

Almost surely, 2^84953868841 is an apocalyptic number.

It is an amenable number.

84953868841 is a deficient number, since it is larger than the sum of its proper divisors (1).

84953868841 is an equidigital number, since it uses as much as digits as its factorization.

84953868841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 53084160, while the sum is 64.

The spelling of 84953868841 in words is "eighty-four billion, nine hundred fifty-three million, eight hundred sixty-eight thousand, eight hundred forty-one".