542191213405 has 8 divisors (see below), whose sum is σ = 650649419352. Its totient is φ = 433739661888.

The previous prime is 542191213363. The next prime is 542191213451. The reversal of 542191213405 is 504312191245.

It can be written as a sum of positive squares in 4 ways, for example, as 180477979929 + 361713233476 = 424827^2 + 601426^2 .

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 542191213405 - 2¹⁷ = 542191082333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1482562 + ... + 1811731.

It is an arithmetic number, because the mean of its divisors is an integer number (81331177419).

Almost surely, 2^542191213405 is an apocalyptic number.

It is an amenable number.

542191213405 is a deficient number, since it is larger than the sum of its proper divisors (108458205947).

542191213405 is a wasteful number, since it uses less digits than its factorization.

542191213405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3327215.

The product of its (nonzero) digits is 43200, while the sum is 37.

The spelling of 542191213405 in words is "five hundred forty-two billion, one hundred ninety-one million, two hundred thirteen thousand, four hundred five".