2604805855747 has 16 divisors (see below), whose sum is σ = 2629936310400. Its totient is φ = 2579773302720.

The previous prime is 2604805855721. The next prime is 2604805855793. The reversal of 2604805855747 is 7475585084062.

It is a cyclic number.

It is not a de Polignac number, because 2604805855747 - 2¹⁵ = 2604805822979 is a prime.

It is a super-2 number, since 2×2604805855747² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2604805853747) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119033247 + ... + 119055127.

It is an arithmetic number, because the mean of its divisors is an integer number (164371019400).

Almost surely, 2^{2604805855747} is an apocalyptic number.

2604805855747 is a deficient number, since it is larger than the sum of its proper divisors (25130454653).

2604805855747 is a wasteful number, since it uses less digits than its factorization.

2604805855747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24066.

The product of its (nonzero) digits is 75264000, while the sum is 61.

The spelling of 2604805855747 in words is "two trillion, six hundred four billion, eight hundred five million, eight hundred fifty-five thousand, seven hundred forty-seven".