40401433277 has 2 divisors, whose sum is σ = 40401433278. Its totient is φ = 40401433276.

The previous prime is 40401433223. The next prime is 40401433279. The reversal of 40401433277 is 77233410404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26162739001 + 14238694276 = 161749^2 + 119326^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40401433277 is a prime.

Together with 40401433279, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40401433279) 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, 20200716638 + 20200716639.

It is an arithmetic number, because the mean of its divisors is an integer number (20200716639).

Almost surely, 2^40401433277 is an apocalyptic number.

It is an amenable number.

40401433277 is a deficient number, since it is larger than the sum of its proper divisors (1).

40401433277 is an equidigital number, since it uses as much as digits as its factorization.

40401433277 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56448, while the sum is 35.

The spelling of 40401433277 in words is "forty billion, four hundred one million, four hundred thirty-three thousand, two hundred seventy-seven".