169669426857 has 32 divisors (see below), whose sum is σ = 274171951872. Its totient is φ = 91110918144.

The previous prime is 169669426813. The next prime is 169669426859. The reversal of 169669426857 is 758624966961.

It is not a de Polignac number, because 169669426857 - 2¹⁴ = 169669410473 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 169669426791 and 169669426800.

It is not an unprimeable number, because it can be changed into a prime (169669426859) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 130788 + ... + 597029.

It is an arithmetic number, because the mean of its divisors is an integer number (8567873496).

Almost surely, 2^169669426857 is an apocalyptic number.

169669426857 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

169669426857 is a deficient number, since it is larger than the sum of its proper divisors (104502525015).

169669426857 is a wasteful number, since it uses less digits than its factorization.

169669426857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728497.

The product of its digits is 235146240, while the sum is 69.

The spelling of 169669426857 in words is "one hundred sixty-nine billion, six hundred sixty-nine million, four hundred twenty-six thousand, eight hundred fifty-seven".