8978549132 has 24 divisors (see below), whose sum is σ = 18225118464. Its totient is φ = 3790516752.

The previous prime is 8978549113. The next prime is 8978549137. The reversal of 8978549132 is 2319458798.

It is a super-2 number, since 2×8978549132² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (8978549137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2391128 + ... + 2394879.

It is an arithmetic number, because the mean of its divisors is an integer number (759379936).

Almost surely, 2^8978549132 is an apocalyptic number.

It is an amenable number.

8978549132 is an abundant number, since it is smaller than the sum of its proper divisors (9246569332).

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

8978549132 is a wasteful number, since it uses less digits than its factorization.

8978549132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4786085 (or 4786083 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 56.

The square root of 8978549132 is about 94755.2063582788. The cubic root of 8978549132 is about 2078.4299304681.

The spelling of 8978549132 in words is "eight billion, nine hundred seventy-eight million, five hundred forty-nine thousand, one hundred thirty-two".