169427386752 has 128 divisors (see below), whose sum is σ = 494972674560. Its totient is φ = 51022252032.

The previous prime is 169427386727. The next prime is 169427386753. The reversal of 169427386752 is 257683724961.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×169427386752² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169427386753) 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, 126438 + ... + 595685.

It is an arithmetic number, because the mean of its divisors is an integer number (3866974020).

Almost surely, 2^169427386752 is an apocalyptic number.

169427386752 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

169427386752 is an abundant number, since it is smaller than the sum of its proper divisors (325545287808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

169427386752 is a wasteful number, since it uses less digits than its factorization.

169427386752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722200 (or 722188 counting only the distinct ones).

The product of its digits is 30481920, while the sum is 60.

The spelling of 169427386752 in words is "one hundred sixty-nine billion, four hundred twenty-seven million, three hundred eighty-six thousand, seven hundred fifty-two".