20080837639 has 2 divisors, whose sum is σ = 20080837640. Its totient is φ = 20080837638.

The previous prime is 20080837619. The next prime is 20080837643. The reversal of 20080837639 is 93673808002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20080837639 - 2²³ = 20072449031 is a prime.

It is a super-3 number, since 3×20080837639³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20080837619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10040418819 + 10040418820.

It is an arithmetic number, because the mean of its divisors is an integer number (10040418820).

Almost surely, 2^20080837639 is an apocalyptic number.

20080837639 is a deficient number, since it is larger than the sum of its proper divisors (1).

20080837639 is an equidigital number, since it uses as much as digits as its factorization.

20080837639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 435456, while the sum is 46.

The spelling of 20080837639 in words is "twenty billion, eighty million, eight hundred thirty-seven thousand, six hundred thirty-nine".