9911490928 has 20 divisors (see below), whose sum is σ = 19219382728. Its totient is φ = 4951650240.

The previous prime is 9911490893. The next prime is 9911490929. The reversal of 9911490928 is 8290941199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9911490929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 235938 + ... + 274753.

Almost surely, 2^9911490928 is an apocalyptic number.

It is an amenable number.

9911490928 is a deficient number, since it is larger than the sum of its proper divisors (9307891800).

9911490928 is a wasteful number, since it uses less digits than its factorization.

9911490928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511912 (or 511906 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 52.

The square root of 9911490928 is about 99556.4710503541. The cubic root of 9911490928 is about 2148.0596106249.

The spelling of 9911490928 in words is "nine billion, nine hundred eleven million, four hundred ninety thousand, nine hundred twenty-eight".