542693550638 has 16 divisors (see below), whose sum is σ = 815837114880. Its totient is φ = 270747981816.

The previous prime is 542693550617. The next prime is 542693550667. The reversal of 542693550638 is 836055396245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9362381 + ... + 9420167.

It is an arithmetic number, because the mean of its divisors is an integer number (50989819680).

Almost surely, 2^542693550638 is an apocalyptic number.

542693550638 is a deficient number, since it is larger than the sum of its proper divisors (273143564242).

542693550638 is a wasteful number, since it uses less digits than its factorization.

542693550638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68071.

The product of its (nonzero) digits is 23328000, while the sum is 56.

The spelling of 542693550638 in words is "five hundred forty-two billion, six hundred ninety-three million, five hundred fifty thousand, six hundred thirty-eight".