999420084037 has 2 divisors, whose sum is σ = 999420084038. Its totient is φ = 999420084036.

The previous prime is 999420084031. The next prime is 999420084067. The reversal of 999420084037 is 730480024999.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 764577108801 + 234842975236 = 874401^2 + 484606^2 .

It is an emirp because it is prime and its reverse (730480024999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 999420084037 - 2³⁹ = 449664270149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999420084031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499710042018 + 499710042019.

It is an arithmetic number, because the mean of its divisors is an integer number (499710042019).

Almost surely, 2^999420084037 is an apocalyptic number.

It is an amenable number.

999420084037 is a deficient number, since it is larger than the sum of its proper divisors (1).

999420084037 is an equidigital number, since it uses as much as digits as its factorization.

999420084037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3919104, while the sum is 55.

The spelling of 999420084037 in words is "nine hundred ninety-nine billion, four hundred twenty million, eighty-four thousand, thirty-seven".