10406390191 has 2 divisors, whose sum is σ = 10406390192. Its totient is φ = 10406390190.

The previous prime is 10406390173. The next prime is 10406390207. The reversal of 10406390191 is 19109360401.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10406390191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10406390101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5203195095 + 5203195096.

It is an arithmetic number, because the mean of its divisors is an integer number (5203195096).

Almost surely, 2^10406390191 is an apocalyptic number.

10406390191 is a deficient number, since it is larger than the sum of its proper divisors (1).

10406390191 is an equidigital number, since it uses as much as digits as its factorization.

10406390191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 34.

The spelling of 10406390191 in words is "ten billion, four hundred six million, three hundred ninety thousand, one hundred ninety-one".