542540290679 has 4 divisors (see below), whose sum is σ = 571095042840. Its totient is φ = 513985538520.

The previous prime is 542540290667. The next prime is 542540290729. The reversal of 542540290679 is 976092045245.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 542540290679 - 2¹² = 542540286583 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 542540290679.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542540290639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14277376052 + ... + 14277376089.

It is an arithmetic number, because the mean of its divisors is an integer number (142773760710).

Almost surely, 2^542540290679 is an apocalyptic number.

542540290679 is a deficient number, since it is larger than the sum of its proper divisors (28554752161).

542540290679 is a wasteful number, since it uses less digits than its factorization.

542540290679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28554752160.

The product of its (nonzero) digits is 5443200, while the sum is 53.

The spelling of 542540290679 in words is "five hundred forty-two billion, five hundred forty million, two hundred ninety thousand, six hundred seventy-nine".