542220512636 has 24 divisors (see below), whose sum is σ = 1036663899264. Its totient is φ = 246103000880.

The previous prime is 542220512579. The next prime is 542220512681. The reversal of 542220512636 is 636215022245.

It is a self number, because there is not a number n which added to its sum of digits gives 542220512636.

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, 8991320 + ... + 9051423.

It is an arithmetic number, because the mean of its divisors is an integer number (43194329136).

Almost surely, 2^542220512636 is an apocalyptic number.

It is an amenable number.

542220512636 is a deficient number, since it is larger than the sum of its proper divisors (494443386628).

542220512636 is a wasteful number, since it uses less digits than its factorization.

542220512636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18043441 (or 18043439 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 38.

The spelling of 542220512636 in words is "five hundred forty-two billion, two hundred twenty million, five hundred twelve thousand, six hundred thirty-six".