7421266055818 has 16 divisors (see below), whose sum is σ = 11274547084416. Its totient is φ = 3663151382880.

The previous prime is 7421266055771. The next prime is 7421266055843. The reversal of 7421266055818 is 8185506621247.

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, 16702146 + ... + 17140717.

It is an arithmetic number, because the mean of its divisors is an integer number (704659192776).

Almost surely, 2^{7421266055818} is an apocalyptic number.

7421266055818 is a deficient number, since it is larger than the sum of its proper divisors (3853281028598).

7421266055818 is a wasteful number, since it uses less digits than its factorization.

7421266055818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33844269.

The product of its (nonzero) digits is 6451200, while the sum is 55.

The spelling of 7421266055818 in words is "seven trillion, four hundred twenty-one billion, two hundred sixty-six million, fifty-five thousand, eight hundred eighteen".