542106643415 has 4 divisors (see below), whose sum is σ = 650527972104. Its totient is φ = 433685314728.

The previous prime is 542106643327. The next prime is 542106643439. The reversal of 542106643415 is 514346601245.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-542106643415 is a prime.

It is a super-2 number, since 2×542106643415² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54210664337 + ... + 54210664346.

It is an arithmetic number, because the mean of its divisors is an integer number (162631993026).

Almost surely, 2^542106643415 is an apocalyptic number.

542106643415 is a deficient number, since it is larger than the sum of its proper divisors (108421328689).

542106643415 is a wasteful number, since it uses less digits than its factorization.

542106643415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108421328688.

The product of its (nonzero) digits is 345600, while the sum is 41.

The spelling of 542106643415 in words is "five hundred forty-two billion, one hundred six million, six hundred forty-three thousand, four hundred fifteen".