84111587175013 has 2 divisors, whose sum is σ = 84111587175014. Its totient is φ = 84111587175012.

The previous prime is 84111587174977. The next prime is 84111587175089. The reversal of 84111587175013 is 31057178511148.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75666042096129 + 8445545078884 = 8698623^2 + 2906122^2 .

It is a cyclic number.

It is not a de Polignac number, because 84111587175013 - 2⁹ = 84111587174501 is a prime.

It is a super-2 number, since 2×84111587175013² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84111587173013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42055793587506 + 42055793587507.

It is an arithmetic number, because the mean of its divisors is an integer number (42055793587507).

Almost surely, 2^{84111587175013} is an apocalyptic number.

It is an amenable number.

84111587175013 is a deficient number, since it is larger than the sum of its proper divisors (1).

84111587175013 is an equidigital number, since it uses as much as digits as its factorization.

84111587175013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 940800, while the sum is 52.

The spelling of 84111587175013 in words is "eighty-four trillion, one hundred eleven billion, five hundred eighty-seven million, one hundred seventy-five thousand, thirteen".