438666190007 has 2 divisors, whose sum is σ = 438666190008. Its totient is φ = 438666190006.

The previous prime is 438666190003. The next prime is 438666190073. The reversal of 438666190007 is 700091666834.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 438666190007 - 2² = 438666190003 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (438666190003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219333095003 + 219333095004.

It is an arithmetic number, because the mean of its divisors is an integer number (219333095004).

Almost surely, 2^438666190007 is an apocalyptic number.

438666190007 is a deficient number, since it is larger than the sum of its proper divisors (1).

438666190007 is an equidigital number, since it uses as much as digits as its factorization.

438666190007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1306368, while the sum is 50.

The spelling of 438666190007 in words is "four hundred thirty-eight billion, six hundred sixty-six million, one hundred ninety thousand, seven".