542093019866 has 48 divisors (see below), whose sum is σ = 893918584440. Its totient is φ = 246210048000.

The previous prime is 542093019847. The next prime is 542093019901. The reversal of 542093019866 is 668910390245.

It can be written as a sum of positive squares in 12 ways, for example, as 95095140625 + 446997879241 = 308375^2 + 668579^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60221366 + ... + 60230366.

Almost surely, 2^542093019866 is an apocalyptic number.

542093019866 is a deficient number, since it is larger than the sum of its proper divisors (351825564574).

542093019866 is a wasteful number, since it uses less digits than its factorization.

542093019866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12659 (or 12642 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 53.

The spelling of 542093019866 in words is "five hundred forty-two billion, ninety-three million, nineteen thousand, eight hundred sixty-six".