4578481368877 has 6 divisors (see below), whose sum is σ = 4957763849322. Its totient is φ = 4226290494192.

The previous prime is 4578481368859. The next prime is 4578481368883. The reversal of 4578481368877 is 7788631848754.

It can be written as a sum of positive squares in 3 ways, for example, as 37708202596 + 4540773166281 = 194186^2 + 2130909^2 .

It is not a de Polignac number, because 4578481368877 - 2³¹ = 4576333885229 is a prime.

It is a super-2 number, since 2×4578481368877² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4578481368817) 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, 13545802698 + ... + 13545803035.

It is an arithmetic number, because the mean of its divisors is an integer number (826293974887).

Almost surely, 2^{4578481368877} is an apocalyptic number.

It is an amenable number.

4578481368877 is a deficient number, since it is larger than the sum of its proper divisors (379282480445).

4578481368877 is a wasteful number, since it uses less digits than its factorization.

4578481368877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27091605759 (or 27091605746 counting only the distinct ones).

The product of its digits is 2023096320, while the sum is 76.

The spelling of 4578481368877 in words is "four trillion, five hundred seventy-eight billion, four hundred eighty-one million, three hundred sixty-eight thousand, eight hundred seventy-seven".