40193830087 has 2 divisors, whose sum is σ = 40193830088. Its totient is φ = 40193830086.

The previous prime is 40193830069. The next prime is 40193830097. The reversal of 40193830087 is 78003839104.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40193830087 - 2⁷ = 40193829959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40193830097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20096915043 + 20096915044.

It is an arithmetic number, because the mean of its divisors is an integer number (20096915044).

Almost surely, 2^40193830087 is an apocalyptic number.

40193830087 is a deficient number, since it is larger than the sum of its proper divisors (1).

40193830087 is an equidigital number, since it uses as much as digits as its factorization.

40193830087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 43.

The spelling of 40193830087 in words is "forty billion, one hundred ninety-three million, eight hundred thirty thousand, eighty-seven".