427450640145156 has 18 divisors (see below), whose sum is σ = 1080500229255902. Its totient is φ = 142483546715040.

The previous prime is 427450640145079. The next prime is 427450640145163. The reversal of 427450640145156 is 651541046054724.

427450640145156 is a `hidden beast` number, since 4 + 2 + 7 + 4 + 50 + 64 + 0 + 14 + 515 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 425172852878400 + 2277787266756 = 20619720^2 + 1509234^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5936814446425 + ... + 5936814446496.

Almost surely, 2^{427450640145156} is an apocalyptic number.

It is an amenable number.

427450640145156 is an abundant number, since it is smaller than the sum of its proper divisors (653049589110746).

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

427450640145156 is a wasteful number, since it uses less digits than its factorization.

427450640145156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11873628892931 (or 11873628892926 counting only the distinct ones).

The product of its (nonzero) digits is 16128000, while the sum is 54.

The spelling of 427450640145156 in words is "four hundred twenty-seven trillion, four hundred fifty billion, six hundred forty million, one hundred forty-five thousand, one hundred fifty-six".