84137494173149 has 2 divisors, whose sum is σ = 84137494173150. Its totient is φ = 84137494173148.

The previous prime is 84137494173097. The next prime is 84137494173191. The reversal of 84137494173149 is 94137149473148.

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., 82142953725625 + 1994540447524 = 9063275^2 + 1412282^2 .

It is a cyclic number.

It is not a de Polignac number, because 84137494173149 - 2¹⁶ = 84137494107613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84137494173199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42068747086574 + 42068747086575.

It is an arithmetic number, because the mean of its divisors is an integer number (42068747086575).

Almost surely, 2^{84137494173149} is an apocalyptic number.

It is an amenable number.

84137494173149 is a deficient number, since it is larger than the sum of its proper divisors (1).

84137494173149 is an equidigital number, since it uses as much as digits as its factorization.

84137494173149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 73156608, while the sum is 65.

The spelling of 84137494173149 in words is "eighty-four trillion, one hundred thirty-seven billion, four hundred ninety-four million, one hundred seventy-three thousand, one hundred forty-nine".