11491757078 has 8 divisors (see below), whose sum is σ = 17658065880. Its totient is φ = 5605735120.

The previous prime is 11491757063. The next prime is 11491757117. The reversal of 11491757078 is 87075719411.

11491757078 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70071608 + ... + 70071771.

It is an arithmetic number, because the mean of its divisors is an integer number (2207258235).

Almost surely, 2^11491757078 is an apocalyptic number.

11491757078 is a deficient number, since it is larger than the sum of its proper divisors (6166308802).

11491757078 is a wasteful number, since it uses less digits than its factorization.

11491757078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140143422.

The product of its (nonzero) digits is 493920, while the sum is 50.

The spelling of 11491757078 in words is "eleven billion, four hundred ninety-one million, seven hundred fifty-seven thousand, seventy-eight".