180469643649 has 8 divisors (see below), whose sum is σ = 240631245120. Its totient is φ = 120310568976.

The previous prime is 180469643639. The next prime is 180469643671. The reversal of 180469643649 is 946346964081.

It is a happy number.

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

It is not a de Polignac number, because 180469643649 - 2⁴ = 180469643633 is a prime.

It is a super-3 number, since 3×180469643649³ (a number of 35 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 180469643592 and 180469643601.

It is not an unprimeable number, because it can be changed into a prime (180469643609) 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, 458242 + ... + 755595.

It is an arithmetic number, because the mean of its divisors is an integer number (30078905640).

Almost surely, 2^180469643649 is an apocalyptic number.

It is an amenable number.

180469643649 is a deficient number, since it is larger than the sum of its proper divisors (60161601471).

180469643649 is a wasteful number, since it uses less digits than its factorization.

180469643649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1263399.

The product of its (nonzero) digits is 26873856, while the sum is 60.

The spelling of 180469643649 in words is "one hundred eighty billion, four hundred sixty-nine million, six hundred forty-three thousand, six hundred forty-nine".