4378915485 has 80 divisors (see below), whose sum is σ = 9022147200. Its totient is φ = 1990376064.

The previous prime is 4378915483. The next prime is 4378915487. The reversal of 4378915485 is 5845198734.

4378915485 is a `hidden beast` number, since 4 + 3 + 7 + 8 + 91 + 548 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (4378915483) and next prime (4378915487).

It is not a de Polignac number, because 4378915485 - 2¹ = 4378915483 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4378915481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 503151 + ... + 511779.

It is an arithmetic number, because the mean of its divisors is an integer number (112776840).

Almost surely, 2^4378915485 is an apocalyptic number.

4378915485 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4378915485 is an abundant number, since it is smaller than the sum of its proper divisors (4643231715).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4378915485 is a wasteful number, since it uses less digits than its factorization.

4378915485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8832 (or 8823 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 54.

The square root of 4378915485 is about 66173.3744416892. The cubic root of 4378915485 is about 1636.0209262223.

The spelling of 4378915485 in words is "four billion, three hundred seventy-eight million, nine hundred fifteen thousand, four hundred eighty-five".