180427388728356 has 2016 divisors, whose sum is σ = 655421139968000. Its totient is φ = 42352021324800.

The previous prime is 180427388728313. The next prime is 180427388728397. The reversal of 180427388728356 is 653827883724081.

180427388728356 is a `hidden beast` number, since 1 + 8 + 0 + 427 + 3 + 8 + 8 + 72 + 83 + 56 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 671 ways as a sum of consecutive naturals, for example, 106196225595 + ... + 106196227293.

Almost surely, 2^{180427388728356} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 180427388728356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (327710569984000).

180427388728356 is an abundant number, since it is smaller than the sum of its proper divisors (474993751239644).

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

180427388728356 is a wasteful number, since it uses less digits than its factorization.

180427388728356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1873 (or 1845 counting only the distinct ones).

The product of its (nonzero) digits is 867041280, while the sum is 72.

The spelling of 180427388728356 in words is "one hundred eighty trillion, four hundred twenty-seven billion, three hundred eighty-eight million, seven hundred twenty-eight thousand, three hundred fifty-six".