8478915783 has 32 divisors (see below), whose sum is σ = 12444096000. Its totient is φ = 5103305856.

The previous prime is 8478915773. The next prime is 8478915793. The reversal of 8478915783 is 3875198748.

It is an interprime number because it is at equal distance from previous prime (8478915773) and next prime (8478915793).

It is not a de Polignac number, because 8478915783 - 2³² = 4183948487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8478915703) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 448641 + ... + 467157.

It is an arithmetic number, because the mean of its divisors is an integer number (388878000).

Almost surely, 2^8478915783 is an apocalyptic number.

8478915783 is a deficient number, since it is larger than the sum of its proper divisors (3965180217).

8478915783 is a wasteful number, since it uses less digits than its factorization.

8478915783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18791.

The product of its digits is 13547520, while the sum is 60.

The square root of 8478915783 is about 92081.0283554653. The cubic root of 8478915783 is about 2039.1387322129.

The spelling of 8478915783 in words is "eight billion, four hundred seventy-eight million, nine hundred fifteen thousand, seven hundred eighty-three".