170478453457 has 16 divisors (see below), whose sum is σ = 195398980560. Its totient is φ = 147340541952.

The previous prime is 170478453427. The next prime is 170478453461. The reversal of 170478453457 is 754354874071.

It is a happy number.

170478453457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 1389723841 + 169088729616 = 37279^2 + 411204^2 .

It is a cyclic number.

It is not a de Polignac number, because 170478453457 - 2⁷ = 170478453329 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 170478453398 and 170478453407.

It is not an unprimeable number, because it can be changed into a prime (170478453427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1955782 + ... + 2041087.

It is an arithmetic number, because the mean of its divisors is an integer number (12212436285).

Almost surely, 2^170478453457 is an apocalyptic number.

170478453457 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

170478453457 is a deficient number, since it is larger than the sum of its proper divisors (24920527103).

170478453457 is a wasteful number, since it uses less digits than its factorization.

170478453457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3997092.

The product of its (nonzero) digits is 13171200, while the sum is 55.

The spelling of 170478453457 in words is "one hundred seventy billion, four hundred seventy-eight million, four hundred fifty-three thousand, four hundred fifty-seven".