2170254754961 has 2 divisors, whose sum is σ = 2170254754962. Its totient is φ = 2170254754960.

The previous prime is 2170254754951. The next prime is 2170254754973. The reversal of 2170254754961 is 1694574520712.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1206482560000 + 963772194961 = 1098400^2 + 981719^2 .

It is a cyclic number.

It is not a de Polignac number, because 2170254754961 - 2¹⁰ = 2170254753937 is a prime.

It is a super-2 number, since 2×2170254754961² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2170254754951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1085127377480 + 1085127377481.

It is an arithmetic number, because the mean of its divisors is an integer number (1085127377481).

Almost surely, 2^{2170254754961} is an apocalyptic number.

It is an amenable number.

2170254754961 is a deficient number, since it is larger than the sum of its proper divisors (1).

2170254754961 is an equidigital number, since it uses as much as digits as its factorization.

2170254754961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4233600, while the sum is 53.

The spelling of 2170254754961 in words is "two trillion, one hundred seventy billion, two hundred fifty-four million, seven hundred fifty-four thousand, nine hundred sixty-one".