194153286337 has 2 divisors, whose sum is σ = 194153286338. Its totient is φ = 194153286336.

The previous prime is 194153286277. The next prime is 194153286377. The reversal of 194153286337 is 733682351491.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 176164038961 + 17989247376 = 419719^2 + 134124^2 .

It is a cyclic number.

It is not a de Polignac number, because 194153286337 - 2¹⁹ = 194152762049 is a prime.

It is a super-2 number, since 2×194153286337² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (194153286377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97076643168 + 97076643169.

It is an arithmetic number, because the mean of its divisors is an integer number (97076643169).

Almost surely, 2^194153286337 is an apocalyptic number.

It is an amenable number.

194153286337 is a deficient number, since it is larger than the sum of its proper divisors (1).

194153286337 is an equidigital number, since it uses as much as digits as its factorization.

194153286337 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3265920, while the sum is 52.

The spelling of 194153286337 in words is "one hundred ninety-four billion, one hundred fifty-three million, two hundred eighty-six thousand, three hundred thirty-seven".