20519082506899 has 24 divisors (see below), whose sum is σ = 22109029809408. Its totient is φ = 19035820567680.

The previous prime is 20519082506893. The next prime is 20519082506903. The reversal of 20519082506899 is 99860528091502.

It is not a de Polignac number, because 20519082506899 - 2¹⁹ = 20519081982611 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20519082506899.

It is not an unprimeable number, because it can be changed into a prime (20519082506893) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 93600792 + ... + 93819754.

It is an arithmetic number, because the mean of its divisors is an integer number (921209575392).

Almost surely, 2^{20519082506899} is an apocalyptic number.

20519082506899 is a deficient number, since it is larger than the sum of its proper divisors (1589947302509).

20519082506899 is a wasteful number, since it uses less digits than its factorization.

20519082506899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223635 (or 223618 counting only the distinct ones).

The product of its (nonzero) digits is 27993600, while the sum is 64.

The spelling of 20519082506899 in words is "twenty trillion, five hundred nineteen billion, eighty-two million, five hundred six thousand, eight hundred ninety-nine".