996018386437 has 2 divisors, whose sum is σ = 996018386438. Its totient is φ = 996018386436.

The previous prime is 996018386423. The next prime is 996018386491. The reversal of 996018386437 is 734683810699.

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., 956706996996 + 39311389441 = 978114^2 + 198271^2 .

It is a cyclic number.

It is not a de Polignac number, because 996018386437 - 2⁷ = 996018386309 is a prime.

It is a super-2 number, since 2×996018386437² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (996018384437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498009193218 + 498009193219.

It is an arithmetic number, because the mean of its divisors is an integer number (498009193219).

Almost surely, 2^996018386437 is an apocalyptic number.

It is an amenable number.

996018386437 is a deficient number, since it is larger than the sum of its proper divisors (1).

996018386437 is an equidigital number, since it uses as much as digits as its factorization.

996018386437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47029248, while the sum is 64.

The spelling of 996018386437 in words is "nine hundred ninety-six billion, eighteen million, three hundred eighty-six thousand, four hundred thirty-seven".