9488891653 has 4 divisors (see below), whose sum is σ = 9494820108. Its totient is φ = 9482963200.

The previous prime is 9488891609. The next prime is 9488891663. The reversal of 9488891653 is 3561988849.

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 4824274849 + 4664616804 = 69457^2 + 68298^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9488891653 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9488891591 and 9488891600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9488891603) 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, 2961826 + ... + 2965027.

It is an arithmetic number, because the mean of its divisors is an integer number (2373705027).

Almost surely, 2^9488891653 is an apocalyptic number.

It is an amenable number.

9488891653 is a deficient number, since it is larger than the sum of its proper divisors (5928455).

9488891653 is a wasteful number, since it uses less digits than its factorization.

9488891653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5928454.

The product of its digits is 14929920, while the sum is 61.

The square root of 9488891653 is about 97410.9421625723. The cubic root of 9488891653 is about 2117.0859789728.

The spelling of 9488891653 in words is "nine billion, four hundred eighty-eight million, eight hundred ninety-one thousand, six hundred fifty-three".