40212252329 has 2 divisors, whose sum is σ = 40212252330. Its totient is φ = 40212252328.

The previous prime is 40212252313. The next prime is 40212252349. The reversal of 40212252329 is 92325221204.

40212252329 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31382831104 + 8829421225 = 177152^2 + 93965^2 .

It is a cyclic number.

It is not a de Polignac number, because 40212252329 - 2⁴ = 40212252313 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 40212252295 and 40212252304.

It is not a weakly prime, because it can be changed into another prime (40212252349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20106126164 + 20106126165.

It is an arithmetic number, because the mean of its divisors is an integer number (20106126165).

Almost surely, 2^40212252329 is an apocalyptic number.

It is an amenable number.

40212252329 is a deficient number, since it is larger than the sum of its proper divisors (1).

40212252329 is an equidigital number, since it uses as much as digits as its factorization.

40212252329 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 32.

The spelling of 40212252329 in words is "forty billion, two hundred twelve million, two hundred fifty-two thousand, three hundred twenty-nine".