3478146423989 has 2 divisors, whose sum is σ = 3478146423990. Its totient is φ = 3478146423988.

The previous prime is 3478146423901. The next prime is 3478146424037. The reversal of 3478146423989 is 9893246418743.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2009141823364 + 1469004600625 = 1417442^2 + 1212025^2 .

It is a cyclic number.

It is not a de Polignac number, because 3478146423989 - 2²⁴ = 3478129646773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3478146425989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1739073211994 + 1739073211995.

It is an arithmetic number, because the mean of its divisors is an integer number (1739073211995).

Almost surely, 2^{3478146423989} is an apocalyptic number.

It is an amenable number.

3478146423989 is a deficient number, since it is larger than the sum of its proper divisors (1).

3478146423989 is an equidigital number, since it uses as much as digits as its factorization.

3478146423989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 250822656, while the sum is 68.

The spelling of 3478146423989 in words is "three trillion, four hundred seventy-eight billion, one hundred forty-six million, four hundred twenty-three thousand, nine hundred eighty-nine".