2643119311905 has 12 divisors (see below), whose sum is σ = 4581406807380. Its totient is φ = 1409663632992.

The previous prime is 2643119311871. The next prime is 2643119311949. The reversal of 2643119311905 is 5091139113462.

2643119311905 is a `hidden beast` number, since 2 + 64 + 311 + 93 + 1 + 190 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1172291260176 + 1470828051729 = 1082724^2 + 1212777^2 .

It is not a de Polignac number, because 2643119311905 - 2²⁰ = 2643118263329 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 58735984709 = 2643119311905 / (2 + 6 + 4 + 3 + 1 + 1 + 9 + 3 + 1 + 1 + 9 + 0 + 5).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29367992310 + ... + 29367992399.

It is an arithmetic number, because the mean of its divisors is an integer number (381783900615).

Almost surely, 2^{2643119311905} is an apocalyptic number.

It is an amenable number.

2643119311905 is a deficient number, since it is larger than the sum of its proper divisors (1938287495475).

2643119311905 is a wasteful number, since it uses less digits than its factorization.

2643119311905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58735984720 (or 58735984717 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 45.

The spelling of 2643119311905 in words is "two trillion, six hundred forty-three billion, one hundred nineteen million, three hundred eleven thousand, nine hundred five".