40143634411 has 2 divisors, whose sum is σ = 40143634412. Its totient is φ = 40143634410.

The previous prime is 40143634393. The next prime is 40143634439. The reversal of 40143634411 is 11443634104.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40143634411 - 2⁵ = 40143634379 is a prime.

It is a super-2 number, since 2×40143634411² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40143634451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20071817205 + 20071817206.

It is an arithmetic number, because the mean of its divisors is an integer number (20071817206).

Almost surely, 2^40143634411 is an apocalyptic number.

40143634411 is a deficient number, since it is larger than the sum of its proper divisors (1).

40143634411 is an equidigital number, since it uses as much as digits as its factorization.

40143634411 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 31.

The spelling of 40143634411 in words is "forty billion, one hundred forty-three million, six hundred thirty-four thousand, four hundred eleven".