40028394199 has 2 divisors, whose sum is σ = 40028394200. Its totient is φ = 40028394198.

The previous prime is 40028394179. The next prime is 40028394223. The reversal of 40028394199 is 99149382004.

40028394199 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40028394199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40028394179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20014197099 + 20014197100.

It is an arithmetic number, because the mean of its divisors is an integer number (20014197100).

Almost surely, 2^40028394199 is an apocalyptic number.

40028394199 is a deficient number, since it is larger than the sum of its proper divisors (1).

40028394199 is an equidigital number, since it uses as much as digits as its factorization.

40028394199 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 559872, while the sum is 49.

The spelling of 40028394199 in words is "forty billion, twenty-eight million, three hundred ninety-four thousand, one hundred ninety-nine".