11234567779 has 32 divisors (see below), whose sum is σ = 12581222400. Its totient is φ = 9990449280.

The previous prime is 11234567753. The next prime is 11234567807. The reversal of 11234567779 is 97776543211.

It is a happy number.

It is not a de Polignac number, because 11234567779 - 2¹³ = 11234559587 is a prime.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (11234567479) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2343517 + ... + 2348305.

It is an arithmetic number, because the mean of its divisors is an integer number (393163200).

Almost surely, 2^11234567779 is an apocalyptic number.

11234567779 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

11234567779 is a deficient number, since it is larger than the sum of its proper divisors (1346654621).

11234567779 is a wasteful number, since it uses less digits than its factorization.

11234567779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4963.

The product of its digits is 2222640, while the sum is 52.

The spelling of 11234567779 in words is "eleven billion, two hundred thirty-four million, five hundred sixty-seven thousand, seven hundred seventy-nine".