9921062045 has 8 divisors (see below), whose sum is σ = 12605584824. Its totient is φ = 7469976064.

The previous prime is 9921062027. The next prime is 9921062057. The reversal of 9921062045 is 5402601299.

It can be written as a sum of positive squares in 4 ways, for example, as 106791556 + 9814270489 = 10334^2 + 99067^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9921062045 - 2¹⁰ = 9921061021 is a prime.

It is a Duffinian number.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 58359104 + ... + 58359273.

It is an arithmetic number, because the mean of its divisors is an integer number (1575698103).

Almost surely, 2^9921062045 is an apocalyptic number.

It is an amenable number.

9921062045 is a deficient number, since it is larger than the sum of its proper divisors (2684522779).

9921062045 is a wasteful number, since it uses less digits than its factorization.

9921062045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116718399.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 9921062045 is about 99604.5282354171. The cubic root of 9921062045 is about 2148.7508189671.

The spelling of 9921062045 in words is "nine billion, nine hundred twenty-one million, sixty-two thousand, forty-five".