11771080154078 has 8 divisors (see below), whose sum is σ = 20178994549872. Its totient is φ = 5044748637456.

The previous prime is 11771080154077. The next prime is 11771080154087. The reversal of 11771080154078 is 87045108017711.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11771080154077) 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, 420395719775 + ... + 420395719802.

It is an arithmetic number, because the mean of its divisors is an integer number (2522374318734).

Almost surely, 2^{11771080154078} is an apocalyptic number.

11771080154078 is a deficient number, since it is larger than the sum of its proper divisors (8407914395794).

11771080154078 is an equidigital number, since it uses as much as digits as its factorization.

11771080154078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840791439586.

The product of its (nonzero) digits is 439040, while the sum is 50.

The spelling of 11771080154078 in words is "eleven trillion, seven hundred seventy-one billion, eighty million, one hundred fifty-four thousand, seventy-eight".