542678689 has 8 divisors (see below), whose sum is σ = 620684288. Its totient is φ = 464793120.

The previous prime is 542678687. The next prime is 542678699. The reversal of 542678689 is 986876245.

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

It is a cyclic number.

It is not a de Polignac number, because 542678689 - 2¹ = 542678687 is a prime.

It is not an unprimeable number, because it can be changed into a prime (542678687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20097 + ... + 38590.

It is an arithmetic number, because the mean of its divisors is an integer number (77585536).

Almost surely, 2^542678689 is an apocalyptic number.

It is an amenable number.

542678689 is a deficient number, since it is larger than the sum of its proper divisors (78005599).

542678689 is a wasteful number, since it uses less digits than its factorization.

542678689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60015.

The product of its digits is 5806080, while the sum is 55.

The square root of 542678689 is about 23295.4649878469. The cubic root of 542678689 is about 815.6695610559.

The spelling of 542678689 in words is "five hundred forty-two million, six hundred seventy-eight thousand, six hundred eighty-nine".