40088804381 has 2 divisors, whose sum is σ = 40088804382. Its totient is φ = 40088804380.

The previous prime is 40088804377. The next prime is 40088804419. The reversal of 40088804381 is 18340888004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33038515225 + 7050289156 = 181765^2 + 83966^2 .

It is a cyclic number.

It is not a de Polignac number, because 40088804381 - 2² = 40088804377 is a prime.

It is a super-2 number, since 2×40088804381² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40088809381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20044402190 + 20044402191.

It is an arithmetic number, because the mean of its divisors is an integer number (20044402191).

Almost surely, 2^40088804381 is an apocalyptic number.

It is an amenable number.

40088804381 is a deficient number, since it is larger than the sum of its proper divisors (1).

40088804381 is an equidigital number, since it uses as much as digits as its factorization.

40088804381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 196608, while the sum is 44.

The spelling of 40088804381 in words is "forty billion, eighty-eight million, eight hundred four thousand, three hundred eighty-one".