194211902953 has 2 divisors, whose sum is σ = 194211902954. Its totient is φ = 194211902952.

The previous prime is 194211902923. The next prime is 194211902977. The reversal of 194211902953 is 359209112491.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 193104876969 + 1107025984 = 439437^2 + 33272^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-194211902953 is a prime.

It is not a weakly prime, because it can be changed into another prime (194211902923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97105951476 + 97105951477.

It is an arithmetic number, because the mean of its divisors is an integer number (97105951477).

Almost surely, 2^194211902953 is an apocalyptic number.

It is an amenable number.

194211902953 is a deficient number, since it is larger than the sum of its proper divisors (1).

194211902953 is an equidigital number, since it uses as much as digits as its factorization.

194211902953 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 174960, while the sum is 46.

The spelling of 194211902953 in words is "one hundred ninety-four billion, two hundred eleven million, nine hundred two thousand, nine hundred fifty-three".