2705405408405 has 16 divisors (see below), whose sum is σ = 3730998049920. Its totient is φ = 1844771249472.

The previous prime is 2705405408371. The next prime is 2705405408413. The reversal of 2705405408405 is 5048045045072.

It is a cyclic number.

It is not a de Polignac number, because 2705405408405 - 2⁶ = 2705405408341 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 215907974 + ... + 215920503.

It is an arithmetic number, because the mean of its divisors is an integer number (233187378120).

Almost surely, 2^{2705405408405} is an apocalyptic number.

It is an amenable number.

2705405408405 is a deficient number, since it is larger than the sum of its proper divisors (1025592641515).

2705405408405 is a wasteful number, since it uses less digits than its factorization.

2705405408405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431828668.

The product of its (nonzero) digits is 896000, while the sum is 44.

The spelling of 2705405408405 in words is "two trillion, seven hundred five billion, four hundred five million, four hundred eight thousand, four hundred five".