10042003949 has 2 divisors, whose sum is σ = 10042003950. Its totient is φ = 10042003948.

The previous prime is 10042003901. The next prime is 10042003991. The reversal of 10042003949 is 94930024001.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6891988324 + 3150015625 = 83018^2 + 56125^2 .

It is an emirp because it is prime and its reverse (94930024001) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10042003949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10042003249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5021001974 + 5021001975.

It is an arithmetic number, because the mean of its divisors is an integer number (5021001975).

Almost surely, 2^10042003949 is an apocalyptic number.

It is an amenable number.

10042003949 is a deficient number, since it is larger than the sum of its proper divisors (1).

10042003949 is an equidigital number, since it uses as much as digits as its factorization.

10042003949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 32.

The spelling of 10042003949 in words is "ten billion, forty-two million, three thousand, nine hundred forty-nine".