2146445405774 has 16 divisors (see below), whose sum is σ = 3324769301040. Its totient is φ = 1038646929600.

The previous prime is 2146445405773. The next prime is 2146445405777. The reversal of 2146445405774 is 4775045446412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2146445405771) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 114479927 + ... + 114498674.

It is an arithmetic number, because the mean of its divisors is an integer number (207798081315).

Almost surely, 2^{2146445405774} is an apocalyptic number.

2146445405774 is a deficient number, since it is larger than the sum of its proper divisors (1178323895266).

2146445405774 is a wasteful number, since it uses less digits than its factorization.

2146445405774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228978755.

The product of its (nonzero) digits is 15052800, while the sum is 53.

The spelling of 2146445405774 in words is "two trillion, one hundred forty-six billion, four hundred forty-five million, four hundred five thousand, seven hundred seventy-four".