40323210077 has 2 divisors, whose sum is σ = 40323210078. Its totient is φ = 40323210076.

The previous prime is 40323210049. The next prime is 40323210107. The reversal of 40323210077 is 77001232304.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40286109796 + 37100281 = 200714^2 + 6091^2 .

It is a cyclic number.

It is not a de Polignac number, because 40323210077 - 2⁶ = 40323210013 is a prime.

It is a super-2 number, since 2×40323210077² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40323218077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20161605038 + 20161605039.

It is an arithmetic number, because the mean of its divisors is an integer number (20161605039).

Almost surely, 2^40323210077 is an apocalyptic number.

It is an amenable number.

40323210077 is a deficient number, since it is larger than the sum of its proper divisors (1).

40323210077 is an equidigital number, since it uses as much as digits as its factorization.

40323210077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7056, while the sum is 29.

The spelling of 40323210077 in words is "forty billion, three hundred twenty-three million, two hundred ten thousand, seventy-seven".