159478453281 has 16 divisors (see below), whose sum is σ = 243223778304. Its totient is φ = 91052172624.

The previous prime is 159478453271. The next prime is 159478453349. The reversal of 159478453281 is 182354874951.

It is not a de Polignac number, because 159478453281 - 2⁶ = 159478453217 is a prime.

It is a super-2 number, since 2×159478453281² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (159478453231) 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, 3240501 + ... + 3289346.

It is an arithmetic number, because the mean of its divisors is an integer number (15201486144).

Almost surely, 2^159478453281 is an apocalyptic number.

It is an amenable number.

159478453281 is a deficient number, since it is larger than the sum of its proper divisors (83745325023).

159478453281 is a wasteful number, since it uses less digits than its factorization.

159478453281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6531020.

The product of its digits is 9676800, while the sum is 57.

The spelling of 159478453281 in words is "one hundred fifty-nine billion, four hundred seventy-eight million, four hundred fifty-three thousand, two hundred eighty-one".