40253653387 has 2 divisors, whose sum is σ = 40253653388. Its totient is φ = 40253653386.

The previous prime is 40253653367. The next prime is 40253653393. The reversal of 40253653387 is 78335635204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40253653387 - 2²⁷ = 40119435659 is a prime.

It is a super-2 number, since 2×40253653387² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40253653367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20126826693 + 20126826694.

It is an arithmetic number, because the mean of its divisors is an integer number (20126826694).

Almost surely, 2^40253653387 is an apocalyptic number.

40253653387 is a deficient number, since it is larger than the sum of its proper divisors (1).

40253653387 is an equidigital number, since it uses as much as digits as its factorization.

40253653387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1814400, while the sum is 46.

The spelling of 40253653387 in words is "forty billion, two hundred fifty-three million, six hundred fifty-three thousand, three hundred eighty-seven".