202002119778617 has 2 divisors, whose sum is σ = 202002119778618. Its totient is φ = 202002119778616.

The previous prime is 202002119778611. The next prime is 202002119778623. The reversal of 202002119778617 is 716877911200202.

It is a balanced prime because it is at equal distance from previous prime (202002119778611) and next prime (202002119778623).

It can be written as a sum of positive squares in only one way, i.e., 179589508012201 + 22412611766416 = 13401101^2 + 4734196^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202002119778617 is a prime.

It is a super-3 number, since 3×202002119778617³ (a number of 44 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (202002119778611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101001059889308 + 101001059889309.

It is an arithmetic number, because the mean of its divisors is an integer number (101001059889309).

Almost surely, 2^{202002119778617} is an apocalyptic number.

It is an amenable number.

202002119778617 is a deficient number, since it is larger than the sum of its proper divisors (1).

202002119778617 is an equidigital number, since it uses as much as digits as its factorization.

202002119778617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1185408, while the sum is 53.

The spelling of 202002119778617 in words is "two hundred two trillion, two billion, one hundred nineteen million, seven hundred seventy-eight thousand, six hundred seventeen".