40188955424263 has 2 divisors, whose sum is σ = 40188955424264. Its totient is φ = 40188955424262.

The previous prime is 40188955424257. The next prime is 40188955424279. The reversal of 40188955424263 is 36242455988104.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40188955424263 - 2⁹ = 40188955423751 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40188955424213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20094477712131 + 20094477712132.

It is an arithmetic number, because the mean of its divisors is an integer number (20094477712132).

Almost surely, 2^{40188955424263} is an apocalyptic number.

40188955424263 is a deficient number, since it is larger than the sum of its proper divisors (1).

40188955424263 is an equidigital number, since it uses as much as digits as its factorization.

40188955424263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 66355200, while the sum is 61.

The spelling of 40188955424263 in words is "forty trillion, one hundred eighty-eight billion, nine hundred fifty-five million, four hundred twenty-four thousand, two hundred sixty-three".