61453355254349 has 2 divisors, whose sum is σ = 61453355254350. Its totient is φ = 61453355254348.

The previous prime is 61453355254339. The next prime is 61453355254457. The reversal of 61453355254349 is 94345255335416.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60882283344100 + 571071910249 = 7802710^2 + 755693^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61453355254349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61453355254339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30726677627174 + 30726677627175.

It is an arithmetic number, because the mean of its divisors is an integer number (30726677627175).

Almost surely, 2^{61453355254349} is an apocalyptic number.

It is an amenable number.

61453355254349 is a deficient number, since it is larger than the sum of its proper divisors (1).

61453355254349 is an equidigital number, since it uses as much as digits as its factorization.

61453355254349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 116640000, while the sum is 59.

The spelling of 61453355254349 in words is "sixty-one trillion, four hundred fifty-three billion, three hundred fifty-five million, two hundred fifty-four thousand, three hundred forty-nine".