194625683929 has 2 divisors, whose sum is σ = 194625683930. Its totient is φ = 194625683928.

The previous prime is 194625683927. The next prime is 194625684017. The reversal of 194625683929 is 929386526491.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 133262962704 + 61362721225 = 365052^2 + 247715^2 .

It is a cyclic number.

It is not a de Polignac number, because 194625683929 - 2¹ = 194625683927 is a prime.

Together with 194625683927, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (194625683927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97312841964 + 97312841965.

It is an arithmetic number, because the mean of its divisors is an integer number (97312841965).

Almost surely, 2^194625683929 is an apocalyptic number.

It is an amenable number.

194625683929 is a deficient number, since it is larger than the sum of its proper divisors (1).

194625683929 is an equidigital number, since it uses as much as digits as its factorization.

194625683929 is an evil number, because the sum of its binary digits is even.

The product of its digits is 50388480, while the sum is 64.

The spelling of 194625683929 in words is "one hundred ninety-four billion, six hundred twenty-five million, six hundred eighty-three thousand, nine hundred twenty-nine".