478764486369803 has 2 divisors, whose sum is σ = 478764486369804. Its totient is φ = 478764486369802.

The previous prime is 478764486369791. The next prime is 478764486369823. The reversal of 478764486369803 is 308963684467874.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-478764486369803 is a prime.

It is not a weakly prime, because it can be changed into another prime (478764486369823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239382243184901 + 239382243184902.

It is an arithmetic number, because the mean of its divisors is an integer number (239382243184902).

Almost surely, 2^{478764486369803} is an apocalyptic number.

478764486369803 is a deficient number, since it is larger than the sum of its proper divisors (1).

478764486369803 is an equidigital number, since it uses as much as digits as its factorization.

478764486369803 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28092137472, while the sum is 83.

The spelling of 478764486369803 in words is "four hundred seventy-eight trillion, seven hundred sixty-four billion, four hundred eighty-six million, three hundred sixty-nine thousand, eight hundred three".