542815352866 has 8 divisors (see below), whose sum is σ = 814232400300. Its totient is φ = 271404552768.

The previous prime is 542815352861. The next prime is 542815352873. The reversal of 542815352866 is 668253518245.

It can be written as a sum of positive squares in 2 ways, for example, as 393908119641 + 148907233225 = 627621^2 + 385885^2 .

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

It is not an unprimeable number, because it can be changed into a prime (542815352861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1338211 + ... + 1696006.

Almost surely, 2^542815352866 is an apocalyptic number.

542815352866 is a deficient number, since it is larger than the sum of its proper divisors (271417047434).

542815352866 is a wasteful number, since it uses less digits than its factorization.

542815352866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3123668.

The product of its digits is 13824000, while the sum is 55.

The spelling of 542815352866 in words is "five hundred forty-two billion, eight hundred fifteen million, three hundred fifty-two thousand, eight hundred sixty-six".