20754586319 has 2 divisors, whose sum is σ = 20754586320. Its totient is φ = 20754586318.

The previous prime is 20754586313. The next prime is 20754586373. The reversal of 20754586319 is 91368545702.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20754586319 - 2¹⁶ = 20754520783 is a prime.

It is a super-2 number, since 2×20754586319² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20754586313) 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 as a sum of consecutive naturals, namely, 10377293159 + 10377293160.

It is an arithmetic number, because the mean of its divisors is an integer number (10377293160).

It is a 2-persistent number, because it is pandigital, and so is 2⋅20754586319 = 41509172638, but 3⋅20754586319 = 62263758957 is not.

Almost surely, 2^20754586319 is an apocalyptic number.

20754586319 is a deficient number, since it is larger than the sum of its proper divisors (1).

20754586319 is an equidigital number, since it uses as much as digits as its factorization.

20754586319 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1814400, while the sum is 50.

The spelling of 20754586319 in words is "twenty billion, seven hundred fifty-four million, five hundred eighty-six thousand, three hundred nineteen".