40067336993 has 2 divisors, whose sum is σ = 40067336994. Its totient is φ = 40067336992.

The previous prime is 40067336983. The next prime is 40067337103. The reversal of 40067336993 is 39963376004.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25841527009 + 14225809984 = 160753^2 + 119272^2 .

It is a cyclic number.

It is not a de Polignac number, because 40067336993 - 2¹⁸ = 40067074849 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (40067336983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20033668496 + 20033668497.

It is an arithmetic number, because the mean of its divisors is an integer number (20033668497).

Almost surely, 2^40067336993 is an apocalyptic number.

It is an amenable number.

40067336993 is a deficient number, since it is larger than the sum of its proper divisors (1).

40067336993 is an equidigital number, since it uses as much as digits as its factorization.

40067336993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2204496, while the sum is 50.

The spelling of 40067336993 in words is "forty billion, sixty-seven million, three hundred thirty-six thousand, nine hundred ninety-three".