84910450393 has 2 divisors, whose sum is σ = 84910450394. Its totient is φ = 84910450392.

The previous prime is 84910450381. The next prime is 84910450403. The reversal of 84910450393 is 39305401948.

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., 74836714969 + 10073735424 = 273563^2 + 100368^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84910450393 is a prime.

It is a super-2 number, since 2×84910450393² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (84910450343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42455225196 + 42455225197.

It is an arithmetic number, because the mean of its divisors is an integer number (42455225197).

Almost surely, 2^84910450393 is an apocalyptic number.

It is an amenable number.

84910450393 is a deficient number, since it is larger than the sum of its proper divisors (1).

84910450393 is an equidigital number, since it uses as much as digits as its factorization.

84910450393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 466560, while the sum is 46.

The spelling of 84910450393 in words is "eighty-four billion, nine hundred ten million, four hundred fifty thousand, three hundred ninety-three".