40797333238639 has 2 divisors, whose sum is σ = 40797333238640. Its totient is φ = 40797333238638.

The previous prime is 40797333238573. The next prime is 40797333238643. The reversal of 40797333238639 is 93683233379704.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40797333238639 - 2²⁷ = 40797199020911 is a prime.

It is a super-3 number, since 3×40797333238639³ (a number of 42 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40797333239639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20398666619319 + 20398666619320.

It is an arithmetic number, because the mean of its divisors is an integer number (20398666619320).

Almost surely, 2^{40797333238639} is an apocalyptic number.

40797333238639 is a deficient number, since it is larger than the sum of its proper divisors (1).

40797333238639 is an equidigital number, since it uses as much as digits as its factorization.

40797333238639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 370355328, while the sum is 67.

The spelling of 40797333238639 in words is "forty trillion, seven hundred ninety-seven billion, three hundred thirty-three million, two hundred thirty-eight thousand, six hundred thirty-nine".