9901264618 has 16 divisors (see below), whose sum is σ = 17711579520. Its totient is φ = 4058903376.

The previous prime is 9901264609. The next prime is 9901264679. The reversal of 9901264618 is 8164621099.

It is a happy number.

9901264618 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15374313 + ... + 15374956.

It is an arithmetic number, because the mean of its divisors is an integer number (1106973720).

Almost surely, 2^9901264618 is an apocalyptic number.

9901264618 is a deficient number, since it is larger than the sum of its proper divisors (7810314902).

9901264618 is a wasteful number, since it uses less digits than its factorization.

9901264618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30749301.

The product of its (nonzero) digits is 186624, while the sum is 46.

The square root of 9901264618 is about 99505.0984522904. The cubic root of 9901264618 is about 2147.3205935659.

The spelling of 9901264618 in words is "nine billion, nine hundred one million, two hundred sixty-four thousand, six hundred eighteen".