542604040405 has 24 divisors (see below), whose sum is σ = 777902065848. Its totient is φ = 362015353728.

The previous prime is 542604040373. The next prime is 542604040463. The reversal of 542604040405 is 504040406245.

It can be written as a sum of positive squares in 4 ways, for example, as 236593715281 + 306010325124 = 486409^2 + 553182^2 .

It is not a de Polignac number, because 542604040405 - 2⁵ = 542604040373 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 23 ways as a sum of consecutive naturals, for example, 29919454 + ... + 29937583.

It is an arithmetic number, because the mean of its divisors is an integer number (32412586077).

Almost surely, 2^542604040405 is an apocalyptic number.

It is an amenable number.

542604040405 is a deficient number, since it is larger than the sum of its proper divisors (235298025443).

542604040405 is a wasteful number, since it uses less digits than its factorization.

542604040405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59857093 (or 59857086 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 34.

The spelling of 542604040405 in words is "five hundred forty-two billion, six hundred four million, forty thousand, four hundred five".