20458992908019 has 8 divisors (see below), whose sum is σ = 27309550370752. Its totient is φ = 13623882025320.

The previous prime is 20458992907973. The next prime is 20458992908041. The reversal of 20458992908019 is 91080929985402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-20458992908019 is a prime.

It is a super-2 number, since 2×20458992908019² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20458992908089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3861641917 + ... + 3861647214.

It is an arithmetic number, because the mean of its divisors is an integer number (3413693796344).

Almost surely, 2^{20458992908019} is an apocalyptic number.

20458992908019 is a deficient number, since it is larger than the sum of its proper divisors (6850557462733).

20458992908019 is an equidigital number, since it uses as much as digits as its factorization.

20458992908019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7723290017.

The product of its (nonzero) digits is 33592320, while the sum is 66.

The spelling of 20458992908019 in words is "twenty trillion, four hundred fifty-eight billion, nine hundred ninety-two million, nine hundred eight thousand, nineteen".