4121456385946 has 16 divisors (see below), whose sum is σ = 6653151392040. Its totient is φ = 1907713658880.

The previous prime is 4121456385931. The next prime is 4121456386037. The reversal of 4121456385946 is 6495836541214.

It can be written as a sum of positive squares in 4 ways, for example, as 1806844067721 + 2314612318225 = 1344189^2 + 1521385^2 .

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, 993598791 + ... + 993602938.

Almost surely, 2^{4121456385946} is an apocalyptic number.

4121456385946 is a deficient number, since it is larger than the sum of its proper divisors (2531695006094).

4121456385946 is a wasteful number, since it uses less digits than its factorization.

4121456385946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1987201809.

The product of its digits is 24883200, while the sum is 58.

The spelling of 4121456385946 in words is "four trillion, one hundred twenty-one billion, four hundred fifty-six million, three hundred eighty-five thousand, nine hundred forty-six".