40578278341 has 2 divisors, whose sum is σ = 40578278342. Its totient is φ = 40578278340.

The previous prime is 40578278303. The next prime is 40578278407. The reversal of 40578278341 is 14387287504.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39732050241 + 846228100 = 199329^2 + 29090^2 .

It is a cyclic number.

It is not a de Polignac number, because 40578278341 - 2²¹ = 40576181189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40578278441) 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, 20289139170 + 20289139171.

It is an arithmetic number, because the mean of its divisors is an integer number (20289139171).

Almost surely, 2^40578278341 is an apocalyptic number.

It is an amenable number.

40578278341 is a deficient number, since it is larger than the sum of its proper divisors (1).

40578278341 is an equidigital number, since it uses as much as digits as its factorization.

40578278341 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1505280, while the sum is 49.

The spelling of 40578278341 in words is "forty billion, five hundred seventy-eight million, two hundred seventy-eight thousand, three hundred forty-one".