40200088828681 has 2 divisors, whose sum is σ = 40200088828682. Its totient is φ = 40200088828680.

The previous prime is 40200088828631. The next prime is 40200088828733. The reversal of 40200088828681 is 18682888000204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35298558505081 + 4901530323600 = 5941259^2 + 2213940^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40200088828681 is a prime.

It is a super-2 number, since 2×40200088828681² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40200088828631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20100044414340 + 20100044414341.

It is an arithmetic number, because the mean of its divisors is an integer number (20100044414341).

Almost surely, 2^{40200088828681} is an apocalyptic number.

It is an amenable number.

40200088828681 is a deficient number, since it is larger than the sum of its proper divisors (1).

40200088828681 is an equidigital number, since it uses as much as digits as its factorization.

40200088828681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3145728, while the sum is 55.

The spelling of 40200088828681 in words is "forty trillion, two hundred billion, eighty-eight million, eight hundred twenty-eight thousand, six hundred eighty-one".