1984870334297 has 2 divisors, whose sum is σ = 1984870334298. Its totient is φ = 1984870334296.

The previous prime is 1984870334273. The next prime is 1984870334353. The reversal of 1984870334297 is 7924330784891.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1354467681856 + 630402652441 = 1163816^2 + 793979^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1984870334297 is a prime.

It is not a weakly prime, because it can be changed into another prime (1954870334297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 992435167148 + 992435167149.

It is an arithmetic number, because the mean of its divisors is an integer number (992435167149).

Almost surely, 2^{1984870334297} is an apocalyptic number.

It is an amenable number.

1984870334297 is a deficient number, since it is larger than the sum of its proper divisors (1).

1984870334297 is an equidigital number, since it uses as much as digits as its factorization.

1984870334297 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 73156608, while the sum is 65.

The spelling of 1984870334297 in words is "one trillion, nine hundred eighty-four billion, eight hundred seventy million, three hundred thirty-four thousand, two hundred ninety-seven".