2804664648697 has 4 divisors (see below), whose sum is σ = 2901377222820. Its totient is φ = 2707952074576.

The previous prime is 2804664648691. The next prime is 2804664648743. The reversal of 2804664648697 is 7968464664082.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1384613476416 + 1420051172281 = 1176696^2 + 1191659^2 .

It is not a de Polignac number, because 2804664648697 - 2²³ = 2804656260089 is a prime.

It is a super-2 number, since 2×2804664648697² (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 (2804664648691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48356287018 + ... + 48356287075.

It is an arithmetic number, because the mean of its divisors is an integer number (725344305705).

Almost surely, 2^{2804664648697} is an apocalyptic number.

It is an amenable number.

2804664648697 is a deficient number, since it is larger than the sum of its proper divisors (96712574123).

2804664648697 is an equidigital number, since it uses as much as digits as its factorization.

2804664648697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96712574122.

The product of its (nonzero) digits is 668860416, while the sum is 70.

The spelling of 2804664648697 in words is "two trillion, eight hundred four billion, six hundred sixty-four million, six hundred forty-eight thousand, six hundred ninety-seven".