168853478929 has 4 divisors (see below), whose sum is σ = 168854846976. Its totient is φ = 168852110884.

The previous prime is 168853478897. The next prime is 168853478987. The reversal of 168853478929 is 929874358861.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 168853478929 - 2⁵ = 168853478897 is a prime.

It is a super-2 number, since 2×168853478929² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168853478029) 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, 478249 + ... + 752614.

It is an arithmetic number, because the mean of its divisors is an integer number (42213711744).

Almost surely, 2^168853478929 is an apocalyptic number.

It is an amenable number.

168853478929 is a deficient number, since it is larger than the sum of its proper divisors (1368047).

168853478929 is a wasteful number, since it uses less digits than its factorization.

168853478929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1368046.

The product of its digits is 209018880, while the sum is 70.

The spelling of 168853478929 in words is "one hundred sixty-eight billion, eight hundred fifty-three million, four hundred seventy-eight thousand, nine hundred twenty-nine".