11276829391 has 4 divisors (see below), whose sum is σ = 11357957800. Its totient is φ = 11195700984.

The previous prime is 11276829383. The next prime is 11276829397. The reversal of 11276829391 is 19392867211.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11276829391 - 2³ = 11276829383 is a prime.

It is a super-2 number, since 2×11276829391² (a number of 21 digits) 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 (11276829397) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40563996 + ... + 40564273.

It is an arithmetic number, because the mean of its divisors is an integer number (2839489450).

Almost surely, 2^11276829391 is an apocalyptic number.

11276829391 is a deficient number, since it is larger than the sum of its proper divisors (81128409).

11276829391 is an equidigital number, since it uses as much as digits as its factorization.

11276829391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81128408.

The product of its digits is 326592, while the sum is 49.

The spelling of 11276829391 in words is "eleven billion, two hundred seventy-six million, eight hundred twenty-nine thousand, three hundred ninety-one".