2146445405775 has 72 divisors (see below), whose sum is σ = 4195155235440. Its totient is φ = 1040420160000.

The previous prime is 2146445405773. The next prime is 2146445405777. The reversal of 2146445405775 is 5775045446412.

2146445405775 is a `hidden beast` number, since 2 + 1 + 4 + 6 + 44 + 540 + 57 + 7 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (2146445405773) and next prime (2146445405777).

It is not a de Polignac number, because 2146445405775 - 2¹ = 2146445405773 is a prime.

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 polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 9213225 + ... + 9443325.

Almost surely, 2^{2146445405775} is an apocalyptic number.

2146445405775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2146445405775 is a deficient number, since it is larger than the sum of its proper divisors (2048709829665).

2146445405775 is a wasteful number, since it uses less digits than its factorization.

2146445405775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233897 (or 233889 counting only the distinct ones).

The product of its (nonzero) digits is 18816000, while the sum is 54.

The spelling of 2146445405775 in words is "two trillion, one hundred forty-six billion, four hundred forty-five million, four hundred five thousand, seven hundred seventy-five".