168426009253 has 16 divisors (see below), whose sum is σ = 179568840384. Its totient is φ = 157421571840.

The previous prime is 168426009233. The next prime is 168426009289. The reversal of 168426009253 is 352900624861.

It is a cyclic number.

It is not a de Polignac number, because 168426009253 - 2⁹ = 168426008741 is a prime.

It is a super-3 number, since 3×168426009253³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168426009233) 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, 5073238 + ... + 5106328.

It is an arithmetic number, because the mean of its divisors is an integer number (11223052524).

Almost surely, 2^168426009253 is an apocalyptic number.

It is an amenable number.

168426009253 is a deficient number, since it is larger than the sum of its proper divisors (11142831131).

168426009253 is a wasteful number, since it uses less digits than its factorization.

168426009253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35172.

The product of its (nonzero) digits is 622080, while the sum is 46.

The spelling of 168426009253 in words is "one hundred sixty-eight billion, four hundred twenty-six million, nine thousand, two hundred fifty-three".