477860144549 has 2 divisors, whose sum is σ = 477860144550. Its totient is φ = 477860144548.

The previous prime is 477860144477. The next prime is 477860144603. The reversal of 477860144549 is 945441068774.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 469738890625 + 8121253924 = 685375^2 + 90118^2 .

It is a cyclic number.

It is not a de Polignac number, because 477860144549 - 2¹² = 477860140453 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (477860144449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 238930072274 + 238930072275.

It is an arithmetic number, because the mean of its divisors is an integer number (238930072275).

Almost surely, 2^477860144549 is an apocalyptic number.

It is an amenable number.

477860144549 is a deficient number, since it is larger than the sum of its proper divisors (1).

477860144549 is an equidigital number, since it uses as much as digits as its factorization.

477860144549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27095040, while the sum is 59.

The spelling of 477860144549 in words is "four hundred seventy-seven billion, eight hundred sixty million, one hundred forty-four thousand, five hundred forty-nine".