2745031625405 has 16 divisors (see below), whose sum is σ = 3407938438320. Its totient is φ = 2120105551872.

The previous prime is 2745031625387. The next prime is 2745031625489. The reversal of 2745031625405 is 5045261305472.

2745031625405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 191293391641 + 2553738233764 = 437371^2 + 1598042^2 .

It is a cyclic number.

It is not a de Polignac number, because 2745031625405 - 2²⁴ = 2745014848189 is a prime.

It is a Curzon number.

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, 724877 + ... + 2452653.

It is an arithmetic number, because the mean of its divisors is an integer number (212996152395).

Almost surely, 2^{2745031625405} is an apocalyptic number.

It is an amenable number.

2745031625405 is a deficient number, since it is larger than the sum of its proper divisors (662906812915).

2745031625405 is a wasteful number, since it uses less digits than its factorization.

2745031625405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1738768.

The product of its (nonzero) digits is 1008000, while the sum is 44.

The spelling of 2745031625405 in words is "two trillion, seven hundred forty-five billion, thirty-one million, six hundred twenty-five thousand, four hundred five".