1478530259923 has 2 divisors, whose sum is σ = 1478530259924. Its totient is φ = 1478530259922.

The previous prime is 1478530259917. The next prime is 1478530259959. The reversal of 1478530259923 is 3299520358741.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1478530259923 is a prime.

It is not a weakly prime, because it can be changed into another prime (1478530289923) 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, 739265129961 + 739265129962.

It is an arithmetic number, because the mean of its divisors is an integer number (739265129962).

Almost surely, 2^{1478530259923} is an apocalyptic number.

1478530259923 is a deficient number, since it is larger than the sum of its proper divisors (1).

1478530259923 is an equidigital number, since it uses as much as digits as its factorization.

1478530259923 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16329600, while the sum is 58.

The spelling of 1478530259923 in words is "one trillion, four hundred seventy-eight billion, five hundred thirty million, two hundred fifty-nine thousand, nine hundred twenty-three".