180508213947 has 8 divisors (see below), whose sum is σ = 253344861760. Its totient is φ = 114005187720.

The previous prime is 180508213849. The next prime is 180508213969. The reversal of 180508213947 is 749312805081.

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

It is not a de Polignac number, because 180508213947 - 2⁷ = 180508213819 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 180508213896 and 180508213905.

It is not an unprimeable number, because it can be changed into a prime (180508213987) 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, 1583405329 + ... + 1583405442.

It is an arithmetic number, because the mean of its divisors is an integer number (31668107720).

Almost surely, 2^180508213947 is an apocalyptic number.

180508213947 is a deficient number, since it is larger than the sum of its proper divisors (72836647813).

180508213947 is a wasteful number, since it uses less digits than its factorization.

180508213947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3166810793.

The product of its (nonzero) digits is 483840, while the sum is 48.

The spelling of 180508213947 in words is "one hundred eighty billion, five hundred eight million, two hundred thirteen thousand, nine hundred forty-seven".