1984269360149 has 2 divisors, whose sum is σ = 1984269360150. Its totient is φ = 1984269360148.

The previous prime is 1984269360131. The next prime is 1984269360221. The reversal of 1984269360149 is 9410639624891.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1975941885124 + 8327475025 = 1405682^2 + 91255^2 .

It is a cyclic number.

It is not a de Polignac number, because 1984269360149 - 2¹² = 1984269356053 is a prime.

It is a super-2 number, since 2×1984269360149² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1984269360091 and 1984269360100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1984269360119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 992134680074 + 992134680075.

It is an arithmetic number, because the mean of its divisors is an integer number (992134680075).

Almost surely, 2^{1984269360149} is an apocalyptic number.

It is an amenable number.

1984269360149 is a deficient number, since it is larger than the sum of its proper divisors (1).

1984269360149 is an equidigital number, since it uses as much as digits as its factorization.

1984269360149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20155392, while the sum is 62.

The spelling of 1984269360149 in words is "one trillion, nine hundred eighty-four billion, two hundred sixty-nine million, three hundred sixty thousand, one hundred forty-nine".