2612240205406 has 32 divisors (see below), whose sum is σ = 4275359948160. Its totient is φ = 1189782756864.

The previous prime is 2612240205403. The next prime is 2612240205413. The reversal of 2612240205406 is 6045020422162.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2612240205403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3730246 + ... + 4374838.

It is an arithmetic number, because the mean of its divisors is an integer number (133604998380).

Almost surely, 2^{2612240205406} is an apocalyptic number.

2612240205406 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2612240205406 is a deficient number, since it is larger than the sum of its proper divisors (1663119742754).

2612240205406 is a wasteful number, since it uses less digits than its factorization.

2612240205406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646660.

The product of its (nonzero) digits is 46080, while the sum is 34.

Adding to 2612240205406 its reverse (6045020422162), we get a palindrome (8657260627568).

The spelling of 2612240205406 in words is "two trillion, six hundred twelve billion, two hundred forty million, two hundred five thousand, four hundred six".