3921346497113 has 2 divisors, whose sum is σ = 3921346497114. Its totient is φ = 3921346497112.

The previous prime is 3921346497067. The next prime is 3921346497127. The reversal of 3921346497113 is 3117946431293.

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., 2762337072784 + 1159009424329 = 1662028^2 + 1076573^2 .

It is a cyclic number.

It is not a de Polignac number, because 3921346497113 - 2⁸ = 3921346496857 is a prime.

It is not a weakly prime, because it can be changed into another prime (3921346497163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1960673248556 + 1960673248557.

It is an arithmetic number, because the mean of its divisors is an integer number (1960673248557).

Almost surely, 2^{3921346497113} is an apocalyptic number.

It is an amenable number.

3921346497113 is a deficient number, since it is larger than the sum of its proper divisors (1).

3921346497113 is an equidigital number, since it uses as much as digits as its factorization.

3921346497113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2939328, while the sum is 53.

The spelling of 3921346497113 in words is "three trillion, nine hundred twenty-one billion, three hundred forty-six million, four hundred ninety-seven thousand, one hundred thirteen".