8478799146 has 32 divisors (see below), whose sum is σ = 18990151680. Its totient is φ = 2804010048.

The previous prime is 8478799141. The next prime is 8478799157. The reversal of 8478799146 is 6419978748.

8478799146 is a `hidden beast` number, since 8 + 478 + 79 + 91 + 4 + 6 = 666.

It is not an unprimeable number, because it can be changed into a prime (8478799141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 611311 + ... + 625026.

It is an arithmetic number, because the mean of its divisors is an integer number (593442240).

Almost surely, 2^8478799146 is an apocalyptic number.

8478799146 is an abundant number, since it is smaller than the sum of its proper divisors (10511352534).

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

8478799146 is a wasteful number, since it uses less digits than its factorization.

8478799146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1236475 (or 1236469 counting only the distinct ones).

The product of its digits is 24385536, while the sum is 63.

The square root of 8478799146 is about 92080.3950143569. The cubic root of 8478799146 is about 2039.1293819563.

The spelling of 8478799146 in words is "eight billion, four hundred seventy-eight million, seven hundred ninety-nine thousand, one hundred forty-six".