2691420419 has 2 divisors, whose sum is σ = 2691420420. Its totient is φ = 2691420418.

The previous prime is 2691420409. The next prime is 2691420481. The reversal of 2691420419 is 9140241962.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2691420419 - 2²⁰ = 2690371843 is a prime.

It is a super-2 number, since 2×2691420419² = 14487487743620271122, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (2691420409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1345710209 + 1345710210.

It is an arithmetic number, because the mean of its divisors is an integer number (1345710210).

Almost surely, 2^2691420419 is an apocalyptic number.

2691420419 is a deficient number, since it is larger than the sum of its proper divisors (1).

2691420419 is an equidigital number, since it uses as much as digits as its factorization.

2691420419 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 2691420419 is about 51878.9014822018. The cubic root of 2691420419 is about 1391.0001633175. Note that the first 3 decimals are identical.

The spelling of 2691420419 in words is "two billion, six hundred ninety-one million, four hundred twenty thousand, four hundred nineteen".