11857102779 has 16 divisors (see below), whose sum is σ = 16753248000. Its totient is φ = 7438431456.

The previous prime is 11857102759. The next prime is 11857102793. The reversal of 11857102779 is 97720175811.

It is not a de Polignac number, because 11857102779 - 2¹⁹ = 11856578491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11857102739) 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 15 ways as a sum of consecutive naturals, for example, 689559 + ... + 706544.

It is an arithmetic number, because the mean of its divisors is an integer number (1047078000).

Almost surely, 2^11857102779 is an apocalyptic number.

11857102779 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

11857102779 is a deficient number, since it is larger than the sum of its proper divisors (4896145221).

11857102779 is a wasteful number, since it uses less digits than its factorization.

11857102779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1396274.

The product of its (nonzero) digits is 246960, while the sum is 48.

The spelling of 11857102779 in words is "eleven billion, eight hundred fifty-seven million, one hundred two thousand, seven hundred seventy-nine".