2154463773 has 32 divisors (see below), whose sum is σ = 3586652160. Its totient is φ = 1117575360.

The previous prime is 2154463741. The next prime is 2154463783. The reversal of 2154463773 is 3773644512.

It is not a de Polignac number, because 2154463773 - 2⁵ = 2154463741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154463723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 161523 + ... + 174351.

It is an arithmetic number, because the mean of its divisors is an integer number (112082880).

Almost surely, 2^2154463773 is an apocalyptic number.

It is an amenable number.

2154463773 is a deficient number, since it is larger than the sum of its proper divisors (1432188387).

2154463773 is a wasteful number, since it uses less digits than its factorization.

2154463773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13577.

The product of its digits is 423360, while the sum is 42.

The square root of 2154463773 is about 46416.2016218475. The cubic root of 2154463773 is about 1291.5554765825. Note that the first 3 decimals are identical.

The spelling of 2154463773 in words is "two billion, one hundred fifty-four million, four hundred sixty-three thousand, seven hundred seventy-three".