11405348777 has 4 divisors (see below), whose sum is σ = 11488599636. Its totient is φ = 11322097920.

The previous prime is 11405348741. The next prime is 11405348789. The reversal of 11405348777 is 77784350411.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2981596816 + 8423751961 = 54604^2 + 91781^2 .

It is a cyclic number.

It is not a de Polignac number, because 11405348777 - 2²² = 11401154473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11405348707) 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, 41625224 + ... + 41625497.

It is an arithmetic number, because the mean of its divisors is an integer number (2872149909).

Almost surely, 2^11405348777 is an apocalyptic number.

It is an amenable number.

11405348777 is a deficient number, since it is larger than the sum of its proper divisors (83250859).

11405348777 is an equidigital number, since it uses as much as digits as its factorization.

11405348777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83250858.

The product of its (nonzero) digits is 658560, while the sum is 47.

The spelling of 11405348777 in words is "eleven billion, four hundred five million, three hundred forty-eight thousand, seven hundred seventy-seven".