4378327461 has 12 divisors (see below), whose sum is σ = 6542328780. Its totient is φ = 2818233600.

The previous prime is 4378327451. The next prime is 4378327469. The reversal of 4378327461 is 1647238734.

4378327461 is a `hidden beast` number, since 4 + 378 + 3 + 274 + 6 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2082096900 + 2296230561 = 45630^2 + 47919^2 .

It is not a de Polignac number, because 4378327461 - 2⁶ = 4378327397 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4378327469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8387340 + ... + 8387861.

It is an arithmetic number, because the mean of its divisors is an integer number (545194065).

Almost surely, 2^4378327461 is an apocalyptic number.

It is an amenable number.

4378327461 is a deficient number, since it is larger than the sum of its proper divisors (2164001319).

4378327461 is a wasteful number, since it uses less digits than its factorization.

4378327461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16775236 (or 16775233 counting only the distinct ones).

The product of its digits is 677376, while the sum is 45.

The square root of 4378327461 is about 66168.9312366461. The cubic root of 4378327461 is about 1635.9476917546.

The spelling of 4378327461 in words is "four billion, three hundred seventy-eight million, three hundred twenty-seven thousand, four hundred sixty-one".