475188661242 has 32 divisors (see below), whose sum is σ = 1069011538560. Its totient is φ = 158396218956.

The previous prime is 475188661121. The next prime is 475188661253. The reversal of 475188661242 is 242166881574.

475188661242 is a `hidden beast` number, since 4 + 7 + 5 + 18 + 8 + 6 + 612 + 4 + 2 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54315318 + ... + 54324065.

It is an arithmetic number, because the mean of its divisors is an integer number (33406610580).

Almost surely, 2^475188661242 is an apocalyptic number.

475188661242 is an abundant number, since it is smaller than the sum of its proper divisors (593822877318).

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

475188661242 is an equidigital number, since it uses as much as digits as its factorization.

475188661242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108639406 (or 108639388 counting only the distinct ones).

The product of its digits is 5160960, while the sum is 54.

The spelling of 475188661242 in words is "four hundred seventy-five billion, one hundred eighty-eight million, six hundred sixty-one thousand, two hundred forty-two".