478314734477 has 2 divisors, whose sum is σ = 478314734478. Its totient is φ = 478314734476.

The previous prime is 478314734473. The next prime is 478314734531. The reversal of 478314734477 is 774437413874.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 253808394436 + 224506340041 = 503794^2 + 473821^2 .

It is a cyclic number.

It is not a de Polignac number, because 478314734477 - 2² = 478314734473 is a prime.

It is a super-4 number, since 4×478314734477⁴ (a number of 48 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (478314734473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239157367238 + 239157367239.

It is an arithmetic number, because the mean of its divisors is an integer number (239157367239).

Almost surely, 2^478314734477 is an apocalyptic number.

It is an amenable number.

478314734477 is a deficient number, since it is larger than the sum of its proper divisors (1).

478314734477 is an equidigital number, since it uses as much as digits as its factorization.

478314734477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 44255232, while the sum is 59.

The spelling of 478314734477 in words is "four hundred seventy-eight billion, three hundred fourteen million, seven hundred thirty-four thousand, four hundred seventy-seven".