542191213452 has 24 divisors (see below), whose sum is σ = 1445843236096. Its totient is φ = 154911775248.

The previous prime is 542191213451. The next prime is 542191213463. The reversal of 542191213452 is 254312191245.

It is a self number, because there is not a number n which added to its sum of digits gives 542191213452.

It is not an unprimeable number, because it can be changed into a prime (542191213451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3227328568 + ... + 3227328735.

Almost surely, 2^542191213452 is an apocalyptic number.

It is an amenable number.

542191213452 is an abundant number, since it is smaller than the sum of its proper divisors (903652022644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

542191213452 is a wasteful number, since it uses less digits than its factorization.

542191213452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6454657317 (or 6454657315 counting only the distinct ones).

The product of its digits is 86400, while the sum is 39.

The spelling of 542191213452 in words is "five hundred forty-two billion, one hundred ninety-one million, two hundred thirteen thousand, four hundred fifty-two".