40558207078999 has 2 divisors, whose sum is σ = 40558207079000. Its totient is φ = 40558207078998.

The previous prime is 40558207078943. The next prime is 40558207079053. The reversal of 40558207078999 is 99987070285504.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40558207078999 - 2²³ = 40558198690391 is a prime.

It is a super-2 number, since 2×40558207078999² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40558207078699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20279103539499 + 20279103539500.

It is an arithmetic number, because the mean of its divisors is an integer number (20279103539500).

Almost surely, 2^{40558207078999} is an apocalyptic number.

40558207078999 is a deficient number, since it is larger than the sum of its proper divisors (1).

40558207078999 is an equidigital number, since it uses as much as digits as its factorization.

40558207078999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 457228800, while the sum is 73.

The spelling of 40558207078999 in words is "forty trillion, five hundred fifty-eight billion, two hundred seven million, seventy-eight thousand, nine hundred ninety-nine".