7218477473842 has 8 divisors (see below), whose sum is σ = 10888206246000. Its totient is φ = 3589075391844.

The previous prime is 7218477473827. The next prime is 7218477473927. The reversal of 7218477473842 is 2483747748127.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10081672092 + ... + 10081672807.

It is an arithmetic number, because the mean of its divisors is an integer number (1361025780750).

Almost surely, 2^{7218477473842} is an apocalyptic number.

7218477473842 is a deficient number, since it is larger than the sum of its proper divisors (3669728772158).

7218477473842 is a wasteful number, since it uses less digits than its factorization.

7218477473842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20163345080.

The product of its digits is 118013952, while the sum is 64.

The spelling of 7218477473842 in words is "seven trillion, two hundred eighteen billion, four hundred seventy-seven million, four hundred seventy-three thousand, eight hundred forty-two".