9901129562 has 32 divisors (see below), whose sum is σ = 16418484864. Its totient is φ = 4454208000.

The previous prime is 9901129549. The next prime is 9901129571. The reversal of 9901129562 is 2659211099.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2227262 + ... + 2231702.

It is an arithmetic number, because the mean of its divisors is an integer number (513077652).

Almost surely, 2^9901129562 is an apocalyptic number.

9901129562 is a deficient number, since it is larger than the sum of its proper divisors (6517355302).

9901129562 is a wasteful number, since it uses less digits than its factorization.

9901129562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7334.

The product of its (nonzero) digits is 87480, while the sum is 44.

The square root of 9901129562 is about 99504.4198113833. The cubic root of 9901129562 is about 2147.3108301717.

The spelling of 9901129562 in words is "nine billion, nine hundred one million, one hundred twenty-nine thousand, five hundred sixty-two".