2063649993 has 4 divisors (see below), whose sum is σ = 2751533328. Its totient is φ = 1375766660.

The previous prime is 2063649989. The next prime is 2063650013. The reversal of 2063649993 is 3999463602.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2063649993 - 2² = 2063649989 is a prime.

It is a super-4 number, since 4×2063649993⁴ (a number of 38 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (2063649893) 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, 343941663 + ... + 343941668.

It is an arithmetic number, because the mean of its divisors is an integer number (687883332).

Almost surely, 2^2063649993 is an apocalyptic number.

It is an amenable number.

2063649993 is a deficient number, since it is larger than the sum of its proper divisors (687883335).

2063649993 is an equidigital number, since it uses as much as digits as its factorization.

2063649993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687883334.

The product of its (nonzero) digits is 1889568, while the sum is 51.

The square root of 2063649993 is about 45427.4145533289. The cubic root of 2063649993 is about 1273.1473784274.

The spelling of 2063649993 in words is "two billion, sixty-three million, six hundred forty-nine thousand, nine hundred ninety-three".