994172000429 has 2 divisors, whose sum is σ = 994172000430. Its totient is φ = 994172000428.

The previous prime is 994172000389. The next prime is 994172000443. The reversal of 994172000429 is 924000271499.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 894486567529 + 99685432900 = 945773^2 + 315730^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-994172000429 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (994172000629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 497086000214 + 497086000215.

It is an arithmetic number, because the mean of its divisors is an integer number (497086000215).

Almost surely, 2^994172000429 is an apocalyptic number.

It is an amenable number.

994172000429 is a deficient number, since it is larger than the sum of its proper divisors (1).

994172000429 is an equidigital number, since it uses as much as digits as its factorization.

994172000429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 326592, while the sum is 47.

The spelling of 994172000429 in words is "nine hundred ninety-four billion, one hundred seventy-two million, four hundred twenty-nine", and thus it is an aban number.