8978550285 has 16 divisors (see below), whose sum is σ = 14699767104. Its totient is φ = 4677197952.

The previous prime is 8978550283. The next prime is 8978550311. The reversal of 8978550285 is 5820558798.

It is not a de Polignac number, because 8978550285 - 2¹ = 8978550283 is a prime.

It is a super-2 number, since 2×8978550285² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8978550283) 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, 6959472 + ... + 6960761.

It is an arithmetic number, because the mean of its divisors is an integer number (918735444).

Almost surely, 2^8978550285 is an apocalyptic number.

It is an amenable number.

8978550285 is a deficient number, since it is larger than the sum of its proper divisors (5721216819).

8978550285 is a wasteful number, since it uses less digits than its factorization.

8978550285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13920284.

The product of its (nonzero) digits is 8064000, while the sum is 57.

The square root of 8978550285 is about 94755.2124423770. The cubic root of 8978550285 is about 2078.4300194368.

The spelling of 8978550285 in words is "eight billion, nine hundred seventy-eight million, five hundred fifty thousand, two hundred eighty-five".