2048405235647 has 4 divisors (see below), whose sum is σ = 2051571241296. Its totient is φ = 2045239230000.

The previous prime is 2048405235601. The next prime is 2048405235661. The reversal of 2048405235647 is 7465325048402.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2048405235647 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2048405235595 and 2048405235604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2048405295647) 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, 1583001854 + ... + 1583003147.

It is an arithmetic number, because the mean of its divisors is an integer number (512892810324).

Almost surely, 2^{2048405235647} is an apocalyptic number.

2048405235647 is a deficient number, since it is larger than the sum of its proper divisors (3166005649).

2048405235647 is an equidigital number, since it uses as much as digits as its factorization.

2048405235647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3166005648.

The product of its (nonzero) digits is 6451200, while the sum is 50.

The spelling of 2048405235647 in words is "two trillion, forty-eight billion, four hundred five million, two hundred thirty-five thousand, six hundred forty-seven".