3453342638749 has 2 divisors, whose sum is σ = 3453342638750. Its totient is φ = 3453342638748.

The previous prime is 3453342638741. The next prime is 3453342638773. The reversal of 3453342638749 is 9478362433543.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2015142076249 + 1438200562500 = 1419557^2 + 1199250^2 .

It is a cyclic number.

It is not a de Polignac number, because 3453342638749 - 2³ = 3453342638741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3453342638741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1726671319374 + 1726671319375.

It is an arithmetic number, because the mean of its divisors is an integer number (1726671319375).

Almost surely, 2^{3453342638749} is an apocalyptic number.

It is an amenable number.

3453342638749 is a deficient number, since it is larger than the sum of its proper divisors (1).

3453342638749 is an equidigital number, since it uses as much as digits as its factorization.

3453342638749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 156764160, while the sum is 61.

The spelling of 3453342638749 in words is "three trillion, four hundred fifty-three billion, three hundred forty-two million, six hundred thirty-eight thousand, seven hundred forty-nine".