84771047741 has 2 divisors, whose sum is σ = 84771047742. Its totient is φ = 84771047740.

The previous prime is 84771047731. The next prime is 84771047761. The reversal of 84771047741 is 14774017748.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64477905625 + 20293142116 = 253925^2 + 142454^2 .

It is a cyclic number.

It is not a de Polignac number, because 84771047741 - 2⁶ = 84771047677 is a prime.

It is a super-2 number, since 2×84771047741² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 84771047741.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84771047731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42385523870 + 42385523871.

It is an arithmetic number, because the mean of its divisors is an integer number (42385523871).

Almost surely, 2^84771047741 is an apocalyptic number.

It is an amenable number.

84771047741 is a deficient number, since it is larger than the sum of its proper divisors (1).

84771047741 is an equidigital number, since it uses as much as digits as its factorization.

84771047741 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1229312, while the sum is 50.

The spelling of 84771047741 in words is "eighty-four billion, seven hundred seventy-one million, forty-seven thousand, seven hundred forty-one".