8415078984 has 80 divisors (see below), whose sum is σ = 25383116220. Its totient is φ = 2589252480.

The previous prime is 8415078949. The next prime is 8415079007. The reversal of 8415078984 is 4898705148.

8415078984 is a `hidden beast` number, since 8 + 41 + 507 + 8 + 98 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 7081222500 + 1333856484 = 84150^2 + 36522^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 8415078984.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 491047 + ... + 507894.

Almost surely, 2^8415078984 is an apocalyptic number.

It is an amenable number.

8415078984 is an abundant number, since it is smaller than the sum of its proper divisors (16968037236).

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

8415078984 is a wasteful number, since it uses less digits than its factorization.

8415078984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 998972 (or 998959 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 54.

The square root of 8415078984 is about 91733.7396163484. The cubic root of 8415078984 is about 2034.0083535303.

The spelling of 8415078984 in words is "eight billion, four hundred fifteen million, seventy-eight thousand, nine hundred eighty-four".