8185858105442 has 16 divisors (see below), whose sum is σ = 13001259756672. Its totient is φ = 3852111927360.

The previous prime is 8185858105417. The next prime is 8185858105457. The reversal of 8185858105442 is 2445018585818.

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, 626843 + ... + 4094465.

It is an arithmetic number, because the mean of its divisors is an integer number (812578734792).

Almost surely, 2^{8185858105442} is an apocalyptic number.

8185858105442 is a deficient number, since it is larger than the sum of its proper divisors (4815401651230).

8185858105442 is a wasteful number, since it uses less digits than its factorization.

8185858105442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3537073.

The product of its (nonzero) digits is 16384000, while the sum is 59.

The spelling of 8185858105442 in words is "eight trillion, one hundred eighty-five billion, eight hundred fifty-eight million, one hundred five thousand, four hundred forty-two".