9900474368 has 30 divisors (see below), whose sum is σ = 19800377226. Its totient is φ = 4950228992.

The previous prime is 9900474347. The next prime is 9900474373. The reversal of 9900474368 is 8634740099.

It can be written as a sum of positive squares in only one way, i.e., 6523469824 + 3377004544 = 80768^2 + 58112^2 .

It is a super-2 number, since 2×9900474368² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 285755 + ... + 318522.

Almost surely, 2^9900474368 is an apocalyptic number.

It is an amenable number.

9900474368 is a deficient number, since it is larger than the sum of its proper divisors (9899902858).

9900474368 is an frugal number, since it uses more digits than its factorization.

9900474368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604305 (or 604279 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 50.

The square root of 9900474368 is about 99501.1274709990. The cubic root of 9900474368 is about 2147.2634639866.

The spelling of 9900474368 in words is "nine billion, nine hundred million, four hundred seventy-four thousand, three hundred sixty-eight".