11819408077 has 4 divisors (see below), whose sum is σ = 11824065760. Its totient is φ = 11814750396.

The previous prime is 11819408063. The next prime is 11819408087. The reversal of 11819408077 is 77080491811.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11819408077 - 2⁷ = 11819407949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11819408087) 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 3 ways as a sum of consecutive naturals, for example, 2325033 + ... + 2330110.

It is an arithmetic number, because the mean of its divisors is an integer number (2956016440).

Almost surely, 2^11819408077 is an apocalyptic number.

It is an amenable number.

11819408077 is a deficient number, since it is larger than the sum of its proper divisors (4657683).

11819408077 is an equidigital number, since it uses as much as digits as its factorization.

11819408077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4657682.

The product of its (nonzero) digits is 112896, while the sum is 46.

Adding to 11819408077 its reverse (77080491811), we get a palindrome (88899899888).

The spelling of 11819408077 in words is "eleven billion, eight hundred nineteen million, four hundred eight thousand, seventy-seven".