481564440877 has 6 divisors (see below), whose sum is σ = 521457353322. Its totient is φ = 444521022192.

The previous prime is 481564440869. The next prime is 481564440887. The reversal of 481564440877 is 778044465184.

It can be written as a sum of positive squares in 3 ways, for example, as 55800360841 + 425764080036 = 236221^2 + 652506^2 .

It is not a de Polignac number, because 481564440877 - 2³ = 481564440869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (481564440887) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1424746698 + ... + 1424747035.

It is an arithmetic number, because the mean of its divisors is an integer number (86909558887).

Almost surely, 2^481564440877 is an apocalyptic number.

It is an amenable number.

481564440877 is a deficient number, since it is larger than the sum of its proper divisors (39892912445).

481564440877 is a wasteful number, since it uses less digits than its factorization.

481564440877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2849493759 (or 2849493746 counting only the distinct ones).

The product of its (nonzero) digits is 24084480, while the sum is 58.

The spelling of 481564440877 in words is "four hundred eighty-one billion, five hundred sixty-four million, four hundred forty thousand, eight hundred seventy-seven".