20949496419 has 8 divisors (see below), whose sum is σ = 28315301392. Its totient is φ = 13775011200.

The previous prime is 20949496409. The next prime is 20949496429. The reversal of 20949496419 is 91469494902.

It is an interprime number because it is at equal distance from previous prime (20949496409) and next prime (20949496429).

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

It is not a de Polignac number, because 20949496419 - 2⁹ = 20949495907 is a prime.

It is a super-2 number, since 2×20949496419² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20949496409) 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 in 7 ways as a sum of consecutive naturals, for example, 47829682 + ... + 47830119.

It is an arithmetic number, because the mean of its divisors is an integer number (3539412674).

Almost surely, 2^20949496419 is an apocalyptic number.

20949496419 is a deficient number, since it is larger than the sum of its proper divisors (7365804973).

20949496419 is an equidigital number, since it uses as much as digits as its factorization.

20949496419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95659877.

The product of its (nonzero) digits is 5038848, while the sum is 57.

The spelling of 20949496419 in words is "twenty billion, nine hundred forty-nine million, four hundred ninety-six thousand, four hundred nineteen".