180317378089 has 4 divisors (see below), whose sum is σ = 180477093460. Its totient is φ = 180157662720.

The previous prime is 180317378083. The next prime is 180317378107. The reversal of 180317378089 is 980873713081.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 980873713081 = 695777 ⋅1409753.

It can be written as a sum of positive squares in 2 ways, for example, as 29862604864 + 150454773225 = 172808^2 + 387885^2 .

It is a cyclic number.

It is not a de Polignac number, because 180317378089 - 2⁵ = 180317378057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (180317378083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79855992 + ... + 79858249.

It is an arithmetic number, because the mean of its divisors is an integer number (45119273365).

Almost surely, 2^180317378089 is an apocalyptic number.

It is an amenable number.

180317378089 is a deficient number, since it is larger than the sum of its proper divisors (159715371).

180317378089 is a wasteful number, since it uses less digits than its factorization.

180317378089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159715370.

The product of its (nonzero) digits is 2032128, while the sum is 55.

The spelling of 180317378089 in words is "one hundred eighty billion, three hundred seventeen million, three hundred seventy-eight thousand, eighty-nine".