1980010178417 has 2 divisors, whose sum is σ = 1980010178418. Its totient is φ = 1980010178416.

The previous prime is 1980010178413. The next prime is 1980010178521. The reversal of 1980010178417 is 7148710100891.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1029445627456 + 950564550961 = 1014616^2 + 974969^2 .

It is a cyclic number.

It is not a de Polignac number, because 1980010178417 - 2² = 1980010178413 is a prime.

It is not a weakly prime, because it can be changed into another prime (1980010178413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 990005089208 + 990005089209.

It is an arithmetic number, because the mean of its divisors is an integer number (990005089209).

Almost surely, 2^{1980010178417} is an apocalyptic number.

It is an amenable number.

1980010178417 is a deficient number, since it is larger than the sum of its proper divisors (1).

1980010178417 is an equidigital number, since it uses as much as digits as its factorization.

1980010178417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112896, while the sum is 47.

The spelling of 1980010178417 in words is "one trillion, nine hundred eighty billion, ten million, one hundred seventy-eight thousand, four hundred seventeen".