180431469648 has 60 divisors (see below), whose sum is σ = 523659657248. Its totient is φ = 60143821920.

The previous prime is 180431469643. The next prime is 180431469731. The reversal of 180431469648 is 846964134081.

180431469648 is a `hidden beast` number, since 1 + 80 + 43 + 1 + 469 + 64 + 8 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 180431469594 and 180431469603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180431469643) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23199748 + ... + 23207523.

Almost surely, 2^180431469648 is an apocalyptic number.

180431469648 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

180431469648 is an abundant number, since it is smaller than the sum of its proper divisors (343228187600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

180431469648 is an equidigital number, since it uses as much as digits as its factorization.

180431469648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46407294 (or 46407276 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 54.

The spelling of 180431469648 in words is "one hundred eighty billion, four hundred thirty-one million, four hundred sixty-nine thousand, six hundred forty-eight".