61453355254457 has 2 divisors, whose sum is σ = 61453355254458. Its totient is φ = 61453355254456.

The previous prime is 61453355254349. The next prime is 61453355254463. The reversal of 61453355254457 is 75445255335416.

61453355254457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58010935153081 + 3442420101376 = 7616491^2 + 1855376^2 .

It is a cyclic number.

It is not a de Polignac number, because 61453355254457 - 2¹⁸ = 61453354992313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61453355254396 and 61453355254405.

It is not a weakly prime, because it can be changed into another prime (61453355254657) 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, 30726677627228 + 30726677627229.

It is an arithmetic number, because the mean of its divisors is an integer number (30726677627229).

Almost surely, 2^{61453355254457} is an apocalyptic number.

It is an amenable number.

61453355254457 is a deficient number, since it is larger than the sum of its proper divisors (1).

61453355254457 is an equidigital number, since it uses as much as digits as its factorization.

61453355254457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 151200000, while the sum is 59.

The spelling of 61453355254457 in words is "sixty-one trillion, four hundred fifty-three billion, three hundred fifty-five million, two hundred fifty-four thousand, four hundred fifty-seven".