64028457049 has 2 divisors, whose sum is σ = 64028457050. Its totient is φ = 64028457048.

The previous prime is 64028456941. The next prime is 64028457061. The reversal of 64028457049 is 94075482046.

64028457049 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., 48243047449 + 15785409600 = 219643^2 + 125640^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64028457049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64028456993 and 64028457011.

It is not a weakly prime, because it can be changed into another prime (64028457089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32014228524 + 32014228525.

It is an arithmetic number, because the mean of its divisors is an integer number (32014228525).

Almost surely, 2^64028457049 is an apocalyptic number.

It is an amenable number.

64028457049 is a deficient number, since it is larger than the sum of its proper divisors (1).

64028457049 is an equidigital number, since it uses as much as digits as its factorization.

64028457049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1935360, while the sum is 49.

The spelling of 64028457049 in words is "sixty-four billion, twenty-eight million, four hundred fifty-seven thousand, forty-nine".