542405640361 has 8 divisors (see below), whose sum is σ = 584658748800. Its totient is φ = 500228188752.

The previous prime is 542405640349. The next prime is 542405640373. The reversal of 542405640361 is 163046504245.

It is an interprime number because it is at equal distance from previous prime (542405640349) and next prime (542405640373).

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 542405640361 - 2⁷ = 542405640233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (542405640311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18899311 + ... + 18927988.

It is an arithmetic number, because the mean of its divisors is an integer number (73082343600).

Almost surely, 2^542405640361 is an apocalyptic number.

It is an amenable number.

542405640361 is a deficient number, since it is larger than the sum of its proper divisors (42253108439).

542405640361 is a wasteful number, since it uses less digits than its factorization.

542405640361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37828415.

The product of its (nonzero) digits is 345600, while the sum is 40.

The spelling of 542405640361 in words is "five hundred forty-two billion, four hundred five million, six hundred forty thousand, three hundred sixty-one".