1896962670181 has 2 divisors, whose sum is σ = 1896962670182. Its totient is φ = 1896962670180.

The previous prime is 1896962670079. The next prime is 1896962670257. The reversal of 1896962670181 is 1810762696981.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1409940133281 + 487022536900 = 1187409^2 + 697870^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1896962670181 is a prime.

It is a super-2 number, since 2×1896962670181² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1896962671181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 948481335090 + 948481335091.

It is an arithmetic number, because the mean of its divisors is an integer number (948481335091).

Almost surely, 2^{1896962670181} is an apocalyptic number.

It is an amenable number.

1896962670181 is a deficient number, since it is larger than the sum of its proper divisors (1).

1896962670181 is an equidigital number, since it uses as much as digits as its factorization.

1896962670181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15676416, while the sum is 64.

The spelling of 1896962670181 in words is "one trillion, eight hundred ninety-six billion, nine hundred sixty-two million, six hundred seventy thousand, one hundred eighty-one".