542621336441 has 8 divisors (see below), whose sum is σ = 545803210440. Its totient is φ = 539439983872.

The previous prime is 542621336371. The next prime is 542621336473. The reversal of 542621336441 is 144633126245.

It can be written as a sum of positive squares in 4 ways, for example, as 16857127225 + 525764209216 = 129835^2 + 725096^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-542621336441 is a prime.

It is a super-2 number, since 2×542621336441² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (542621330441) 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, 2065025 + ... + 2312913.

It is an arithmetic number, because the mean of its divisors is an integer number (68225401305).

Almost surely, 2^542621336441 is an apocalyptic number.

It is an amenable number.

542621336441 is a deficient number, since it is larger than the sum of its proper divisors (3181873999).

542621336441 is a wasteful number, since it uses less digits than its factorization.

542621336441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260715.

The product of its digits is 414720, while the sum is 41.

The spelling of 542621336441 in words is "five hundred forty-two billion, six hundred twenty-one million, three hundred thirty-six thousand, four hundred forty-one".