159117454873 has 8 divisors (see below), whose sum is σ = 171443266568. Its totient is φ = 146803929984.

The previous prime is 159117454871. The next prime is 159117454883. The reversal of 159117454873 is 378454711951.

It can be written as a sum of positive squares in 4 ways, for example, as 26415350784 + 132702104089 = 162528^2 + 364283^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 159117454873 - 2¹ = 159117454871 is a prime.

It is a super-2 number, since 2×159117454873² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (159117454871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3044790 + ... + 3096607.

It is an arithmetic number, because the mean of its divisors is an integer number (21430408321).

Almost surely, 2^159117454873 is an apocalyptic number.

159117454873 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

159117454873 is a deficient number, since it is larger than the sum of its proper divisors (12325811695).

159117454873 is a wasteful number, since it uses less digits than its factorization.

159117454873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6143403.

The product of its digits is 4233600, while the sum is 55.

The spelling of 159117454873 in words is "one hundred fifty-nine billion, one hundred seventeen million, four hundred fifty-four thousand, eight hundred seventy-three".