40067370649 has 2 divisors, whose sum is σ = 40067370650. Its totient is φ = 40067370648.

The previous prime is 40067370641. The next prime is 40067370689. The reversal of 40067370649 is 94607376004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36694084249 + 3373286400 = 191557^2 + 58080^2 .

It is a cyclic number.

It is not a de Polignac number, because 40067370649 - 2³ = 40067370641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40067370599 and 40067370608.

It is not a weakly prime, because it can be changed into another prime (40067370641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20033685324 + 20033685325.

It is an arithmetic number, because the mean of its divisors is an integer number (20033685325).

Almost surely, 2^40067370649 is an apocalyptic number.

It is an amenable number.

40067370649 is a deficient number, since it is larger than the sum of its proper divisors (1).

40067370649 is an equidigital number, since it uses as much as digits as its factorization.

40067370649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 762048, while the sum is 46.

The spelling of 40067370649 in words is "forty billion, sixty-seven million, three hundred seventy thousand, six hundred forty-nine".