2647385993 has 8 divisors (see below), whose sum is σ = 3049408512. Its totient is φ = 2251319616.

The previous prime is 2647385989. The next prime is 2647385999. The reversal of 2647385993 is 3995837462.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2647385993 - 2² = 2647385989 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2647385999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1488080 + ... + 1489857.

It is an arithmetic number, because the mean of its divisors is an integer number (381176064).

Almost surely, 2^2647385993 is an apocalyptic number.

It is an amenable number.

2647385993 is a deficient number, since it is larger than the sum of its proper divisors (402022519).

2647385993 is a wasteful number, since it uses less digits than its factorization.

2647385993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2978071.

The product of its digits is 9797760, while the sum is 56.

The square root of 2647385993 is about 51452.7549602546. The cubic root of 2647385993 is about 1383.3723432879.

The spelling of 2647385993 in words is "two billion, six hundred forty-seven million, three hundred eighty-five thousand, nine hundred ninety-three".