84925694445637 has 2 divisors, whose sum is σ = 84925694445638. Its totient is φ = 84925694445636.

The previous prime is 84925694445623. The next prime is 84925694445653. The reversal of 84925694445637 is 73654449652948.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77636293833316 + 7289400612321 = 8811146^2 + 2699889^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84925694445637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84925694443637) 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, 42462847222818 + 42462847222819.

It is an arithmetic number, because the mean of its divisors is an integer number (42462847222819).

Almost surely, 2^{84925694445637} is an apocalyptic number.

It is an amenable number.

84925694445637 is a deficient number, since it is larger than the sum of its proper divisors (1).

84925694445637 is an equidigital number, since it uses as much as digits as its factorization.

84925694445637 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6270566400, while the sum is 76.

The spelling of 84925694445637 in words is "eighty-four trillion, nine hundred twenty-five billion, six hundred ninety-four million, four hundred forty-five thousand, six hundred thirty-seven".