984830437681 has 2 divisors, whose sum is σ = 984830437682. Its totient is φ = 984830437680.

The previous prime is 984830437667. The next prime is 984830437687. The reversal of 984830437681 is 186734038489.

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., 640448078400 + 344382359281 = 800280^2 + 586841^2 .

It is an emirp because it is prime and its reverse (186734038489) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 984830437681 - 2¹³ = 984830429489 is a prime.

It is a super-2 number, since 2×984830437681² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (984830437687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492415218840 + 492415218841.

It is an arithmetic number, because the mean of its divisors is an integer number (492415218841).

Almost surely, 2^984830437681 is an apocalyptic number.

It is an amenable number.

984830437681 is a deficient number, since it is larger than the sum of its proper divisors (1).

984830437681 is an equidigital number, since it uses as much as digits as its factorization.

984830437681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27869184, while the sum is 61.

The spelling of 984830437681 in words is "nine hundred eighty-four billion, eight hundred thirty million, four hundred thirty-seven thousand, six hundred eighty-one".