9849869617923 has 16 divisors (see below), whose sum is σ = 15360420457600. Its totient is φ = 6220970284680.

The previous prime is 9849869617901. The next prime is 9849869617937. The reversal of 9849869617923 is 3297169689489.

9849869617923 is a `hidden beast` number, since 9 + 8 + 498 + 6 + 96 + 17 + 9 + 23 = 666.

It is not a de Polignac number, because 9849869617923 - 2²⁶ = 9849802509059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9849869617223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9600262273 + ... + 9600263298.

It is an arithmetic number, because the mean of its divisors is an integer number (960026278600).

Almost surely, 2^{9849869617923} is an apocalyptic number.

9849869617923 is a deficient number, since it is larger than the sum of its proper divisors (5510550839677).

9849869617923 is a wasteful number, since it uses less digits than its factorization.

9849869617923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19200525599 (or 19200525593 counting only the distinct ones).

The product of its digits is 2539579392, while the sum is 81.

The spelling of 9849869617923 in words is "nine trillion, eight hundred forty-nine billion, eight hundred sixty-nine million, six hundred seventeen thousand, nine hundred twenty-three".