9801492385 has 4 divisors (see below), whose sum is σ = 11761790868. Its totient is φ = 7841193904.

The previous prime is 9801492367. The next prime is 9801492401. The reversal of 9801492385 is 5832941089.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1924752384 + 7876740001 = 43872^2 + 88751^2 .

It is a cyclic number.

It is not a de Polignac number, because 9801492385 - 2⁹ = 9801491873 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 980149234 + ... + 980149243.

It is an arithmetic number, because the mean of its divisors is an integer number (2940447717).

Almost surely, 2^9801492385 is an apocalyptic number.

It is an amenable number.

9801492385 is a deficient number, since it is larger than the sum of its proper divisors (1960298483).

9801492385 is a wasteful number, since it uses less digits than its factorization.

9801492385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1960298482.

The product of its (nonzero) digits is 622080, while the sum is 49.

The square root of 9801492385 is about 99002.4867616971. The cubic root of 9801492385 is about 2140.0835837299.

The spelling of 9801492385 in words is "nine billion, eight hundred one million, four hundred ninety-two thousand, three hundred eighty-five".