39902234413 has 2 divisors, whose sum is σ = 39902234414. Its totient is φ = 39902234412.

The previous prime is 39902234399. The next prime is 39902234429. The reversal of 39902234413 is 31443220993.

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., 30862408329 + 9039826084 = 175677^2 + 95078^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39902234413 is a prime.

It is a super-2 number, since 2×39902234413² (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 (39902234213) 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, 19951117206 + 19951117207.

It is an arithmetic number, because the mean of its divisors is an integer number (19951117207).

Almost surely, 2^39902234413 is an apocalyptic number.

It is an amenable number.

39902234413 is a deficient number, since it is larger than the sum of its proper divisors (1).

39902234413 is an equidigital number, since it uses as much as digits as its factorization.

39902234413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 139968, while the sum is 40.

The spelling of 39902234413 in words is "thirty-nine billion, nine hundred two million, two hundred thirty-four thousand, four hundred thirteen".