1426199911 has 4 divisors (see below), whose sum is σ = 1426940424. Its totient is φ = 1425459400.

The previous prime is 1426199899. The next prime is 1426199977. The reversal of 1426199911 is 1199916241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1199916241 = 3923 ⋅305867.

It is a cyclic number.

It is not a de Polignac number, because 1426199911 - 2²¹ = 1424102759 is a prime.

It is a super-2 number, since 2×1426199911² = 4068092372272815842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1426199011) 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 in 3 ways as a sum of consecutive naturals, for example, 367360 + ... + 371221.

It is an arithmetic number, because the mean of its divisors is an integer number (356735106).

Almost surely, 2^1426199911 is an apocalyptic number.

1426199911 is a deficient number, since it is larger than the sum of its proper divisors (740513).

1426199911 is an equidigital number, since it uses as much as digits as its factorization.

1426199911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 740512.

The product of its digits is 34992, while the sum is 43.

The square root of 1426199911 is about 37765.0620415219. The cubic root of 1426199911 is about 1125.6243213850.

The spelling of 1426199911 in words is "one billion, four hundred twenty-six million, one hundred ninety-nine thousand, nine hundred eleven".