9218778130 has 16 divisors (see below), whose sum is σ = 16906892184. Its totient is φ = 3617935360.

The previous prime is 9218778119. The next prime is 9218778137. The reversal of 9218778130 is 318778129.

It can be written as a sum of positive squares in 4 ways, for example, as 6691403601 + 2527374529 = 81801^2 + 50273^2 .

It is not an unprimeable number, because it can be changed into a prime (9218778137) 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, 8696431 + ... + 8697490.

Almost surely, 2^9218778130 is an apocalyptic number.

9218778130 is a deficient number, since it is larger than the sum of its proper divisors (7688114054).

9218778130 is a wasteful number, since it uses less digits than its factorization.

9218778130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17393981.

The product of its (nonzero) digits is 169344, while the sum is 46.

The square root of 9218778130 is about 96014.4683368085. The cubic root of 9218778130 is about 2096.8037643493.

The spelling of 9218778130 in words is "nine billion, two hundred eighteen million, seven hundred seventy-eight thousand, one hundred thirty".