10401039997 has 2 divisors, whose sum is σ = 10401039998. Its totient is φ = 10401039996.

The previous prime is 10401039959. The next prime is 10401040057. The reversal of 10401039997 is 79993010401.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10334552281 + 66487716 = 101659^2 + 8154^2 .

It is a cyclic number.

It is not a de Polignac number, because 10401039997 - 2¹⁵ = 10401007229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10401039947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5200519998 + 5200519999.

It is an arithmetic number, because the mean of its divisors is an integer number (5200519999).

Almost surely, 2^10401039997 is an apocalyptic number.

It is an amenable number.

10401039997 is a deficient number, since it is larger than the sum of its proper divisors (1).

10401039997 is an equidigital number, since it uses as much as digits as its factorization.

10401039997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 61236, while the sum is 43.

The spelling of 10401039997 in words is "ten billion, four hundred one million, thirty-nine thousand, nine hundred ninety-seven".