2063980639 has 4 divisors (see below), whose sum is σ = 2358835024. Its totient is φ = 1769126256.

The previous prime is 2063980613. The next prime is 2063980649. The reversal of 2063980639 is 9360893602.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2063980639 - 2¹³ = 2063972447 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2063980609) 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, 147427182 + ... + 147427195.

It is an arithmetic number, because the mean of its divisors is an integer number (589708756).

Almost surely, 2^2063980639 is an apocalyptic number.

2063980639 is a deficient number, since it is larger than the sum of its proper divisors (294854385).

2063980639 is an equidigital number, since it uses as much as digits as its factorization.

2063980639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294854384.

The product of its (nonzero) digits is 419904, while the sum is 46.

The square root of 2063980639 is about 45431.0536857775. The cubic root of 2063980639 is about 1273.2153709986.

The spelling of 2063980639 in words is "two billion, sixty-three million, nine hundred eighty thousand, six hundred thirty-nine".