921602487163 has 4 divisors (see below), whose sum is σ = 944080596648. Its totient is φ = 899124377680.

The previous prime is 921602487149. The next prime is 921602487203. The reversal of 921602487163 is 361784206129.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 921602487163 - 2²⁵ = 921568932731 is a prime.

It is a super-2 number, since 2×921602487163² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (921602487133) 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, 11239054681 + ... + 11239054762.

It is an arithmetic number, because the mean of its divisors is an integer number (236020149162).

Almost surely, 2^921602487163 is an apocalyptic number.

921602487163 is a deficient number, since it is larger than the sum of its proper divisors (22478109485).

921602487163 is a wasteful number, since it uses less digits than its factorization.

921602487163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22478109484.

The product of its (nonzero) digits is 870912, while the sum is 49.

The spelling of 921602487163 in words is "nine hundred twenty-one billion, six hundred two million, four hundred eighty-seven thousand, one hundred sixty-three".