2279645541 has 12 divisors (see below), whose sum is σ = 3295063980. Its totient is φ = 1518728640.

The previous prime is 2279645531. The next prime is 2279645581. The reversal of 2279645541 is 1455469722.

2279645541 is a `hidden beast` number, since 2 + 2 + 7 + 96 + 4 + 554 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 987530625 + 1292114916 = 31425^2 + 35946^2 .

It is not a de Polignac number, because 2279645541 - 2⁵ = 2279645509 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2279645531) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72186 + ... + 98843.

It is an arithmetic number, because the mean of its divisors is an integer number (274588665).

Almost surely, 2^2279645541 is an apocalyptic number.

It is an amenable number.

2279645541 is a deficient number, since it is larger than the sum of its proper divisors (1015418439).

2279645541 is a wasteful number, since it uses less digits than its factorization.

2279645541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172516 (or 172513 counting only the distinct ones).

The product of its digits is 604800, while the sum is 45.

The square root of 2279645541 is about 47745.6337375471. The cubic root of 2279645541 is about 1316.1006636797.

The spelling of 2279645541 in words is "two billion, two hundred seventy-nine million, six hundred forty-five thousand, five hundred forty-one".