542250531686 has 8 divisors (see below), whose sum is σ = 819312847560. Its totient is φ = 269146249168.

The previous prime is 542250531659. The next prime is 542250531727. The reversal of 542250531686 is 686135052245.

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

It is a super-2 number, since 2×542250531686² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 542250531686.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 989507996 + ... + 989508543.

It is an arithmetic number, because the mean of its divisors is an integer number (102414105945).

Almost surely, 2^542250531686 is an apocalyptic number.

542250531686 is a deficient number, since it is larger than the sum of its proper divisors (277062315874).

542250531686 is a wasteful number, since it uses less digits than its factorization.

542250531686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1979016678.

The product of its (nonzero) digits is 1728000, while the sum is 47.

The spelling of 542250531686 in words is "five hundred forty-two billion, two hundred fifty million, five hundred thirty-one thousand, six hundred eighty-six".