40236134387 has 2 divisors, whose sum is σ = 40236134388. Its totient is φ = 40236134386.

The previous prime is 40236134369. The next prime is 40236134413. The reversal of 40236134387 is 78343163204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40236134387 - 2⁸ = 40236134131 is a prime.

It is not a weakly prime, because it can be changed into another prime (40236134317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20118067193 + 20118067194.

It is an arithmetic number, because the mean of its divisors is an integer number (20118067194).

Almost surely, 2^40236134387 is an apocalyptic number.

40236134387 is a deficient number, since it is larger than the sum of its proper divisors (1).

40236134387 is an equidigital number, since it uses as much as digits as its factorization.

40236134387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 290304, while the sum is 41.

The spelling of 40236134387 in words is "forty billion, two hundred thirty-six million, one hundred thirty-four thousand, three hundred eighty-seven".